The snapshots tell the story of a big man with a big, beaming grin.

The McIlvain family passes around the pictures, laughing over their son Charlie's antics captured through the years: Charlie as a youngster camping with a backpack bigger than him, Charlie cheesing for the camera on Christmas with bows stuck to his newly balding head, Charlie in a kilt on his wedding day with lovestruck eyes.

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A photo of Charles McIlvain, center, lays on a table between his parents, Kathleen McIlvain, left, and Clark McIlvain, at their home on Thursday, Dec. 3, 2020, in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (AP PhotoAshley Landis)

The snapshots tell the story of a big man with a big, beaming grin.

In this March 2018, photo provided by Maggie Strom, is Ted Strom at Point Lobos State Natural Reserve, Calif. Strom, of Germantown, Tenn., was a staff physician at the Memphis Veterans Affairs Medical Center. He was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Maggie Strom via AP)

Charles McIlvain died on Sept. 2, 2019, at 44. He was one of 34 victims who were killed aboard the Conception — 33 passengers and a new deckhand — trapped below deck on a scuba diving boat that caught fire and sank off the Southern California coast. The boat's captain — one of five crew members who survived — was indicted Tuesday on federal manslaughter charges for one of the deadliest maritime disasters in modern U.S. history.

This 2018 photo provided by Christine Dignam shows her husband Justin Dignam in Huntington Beach, Calif. Justin Dignam of Anaheim Hills, Calif., was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Courtesy Christine Dignam via AP)

The first year has also propelled them into action: The families have formed a group they're calling “Advocacy34” to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck.

FILE - In this Sept. 2, 2019, file photo provided by the Santa Barbara County Fire Department, is the Conception dive boat engulfed in flames after a deadly fire broke out aboard the commercial scuba diving vessel off the Southern California Coast. The families of the 34 people who perished have formed a group they're calling "Advocacy34" to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck. (Santa Barbara County Fire Department via AP, File)

Jerry Boylan, the boat's captain, was indicted Tuesday on allegations of “misconduct, negligence and inattention” by failing to train his crew, conduct fire drills and have a roving night watchman on the Conception. While federal safety investigators blamed the owners of the vessel, Truth Aquatics, for a lack of oversight, they were not charged with any crime.

In this June 1993 photo provided by Kathleen McIlvain, Charles McIlvain, center, and his parents, Clark McIlvain, left, and Kathleen McIlvain, pose after Charles graduated from Taft High School in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

“For me, I think I have to do this for my kids so that they see that their dad’s death was not in vain," said Christine Dignam, whose husband, Justin, died aboard the Conception at 58. "That we’re going to make some good things come out of this, even though we can’t bring him back.”

In this August 1981 photo provided by Kathleen McIlvain is Charles McIlvain, backpacking in Sequoia National Forest, Calif. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

The blaze's cause remains under investigation and may ultimately remain undetermined. But Jennifer Homendy, the NTSB member who traveled to Santa Barbara in the wake of the tragedy, said regardless of what sparked the fire, there were conditions present on board that allowed it to grow undetected to a point where the 34 victims couldn't evacuate.

In this November 2017 photo provided by Kathleen McIlvain, Charles McIlvain and his wife, Jasmine McIlvain pose at a family Thanksgiving gathering in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

As they wait for the recommendations to go through Capitol Hill, the families are also fighting civilly. The families of 32 victims have filed claims against the boat owners, Glen and Dana Fritzler, and Truth Aquatics. In turn, the Fritzlers and the company have filed a legal claim to shield them from damages under a maritime law that limits liability for vessel owners.

In this Dec. 2005 photo provided by Kathleen McIlvain of Charles McIlvain, he laughs while wearing a "bow hawk" made of gift wrap bows on his head at a Christmas family gathering. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

“Had this been the other way around, I know he would be the one advocating and be the one leading for change,” she said.

In this undated photo provided by Kathleen McIlvain, Charles McIlvain smiles for a photo. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Courtesy Kathleen McIlvain via AP)

In this undated photo provided by Kathleen McIlvain, Charles McIlvain smiles for a photo. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Courtesy Kathleen McIlvain via AP)

FILE - In this Sept. 12, 2019, file photo, the burned hull of the dive boat Conception is brought to the surface by a salvage team in the Santa Barbara Channel off Santa Cruz Island in Southern California. The families of the 34  people who perished in the boat fire on Sept. 2, 2019, have formed a group they're calling "Advocacy34" to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck. (Brian van der BrugLos Angeles Times via AP, File)

FILE - In this Sept. 12, 2019, file photo, the burned hull of the dive boat Conception is brought to the surface by a salvage team in the Santa Barbara Channel off Santa Cruz Island in Southern California. The families of the 34 people who perished in the boat fire on Sept. 2, 2019, have formed a group they're calling "Advocacy34" to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck. (Brian van der BrugLos Angeles Times via AP, File)

In this May 2019, photo provided by Maggie Strom is Ted Strom, right, and from left, Maggie Strom and their sons Kestrel and Pfeiffer at Kestrel's High School Graduation in Memphis, Tenn. Strom, of Germantown, Tenn., was a staff physician at the Memphis Veterans Affairs Medical Center. He was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Courtesy Maggie Strom via AP)

In this May 2019, photo provided by Maggie Strom is Ted Strom, right, and from left, Maggie Strom and their sons Kestrel and Pfeiffer at Kestrel's High School Graduation in Memphis, Tenn. Strom, of Germantown, Tenn., was a staff physician at the Memphis Veterans Affairs Medical Center. He was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Courtesy Maggie Strom via AP)

In this 2018 photo, provided by Christine Dignam is her husband Justin Dignam, left, and their daughter Taylor at Santa Catalina Island, Calif. Justin Dignam was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Christine Dignam via AP)

In this 2018 photo, provided by Christine Dignam is her husband Justin Dignam, left, and their daughter Taylor at Santa Catalina Island, Calif. Justin Dignam was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Christine Dignam via AP)

There aren't any new photographs to share, only old memories that bring up pain and grief and unspeakable tragedy barely a year old.

A photo of Charles McIlvain, center, lays on a table between his parents, Kathleen McIlvain, left, and Clark McIlvain, at their home on Thursday, Dec. 3, 2020, in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (AP PhotoAshley Landis)

A photo of Charles McIlvain, center, lays on a table between his parents, Kathleen McIlvain, left, and Clark McIlvain, at their home on Thursday, Dec. 3, 2020, in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (AP PhotoAshley Landis)

Charles McIlvain died on Sept. 2, 2019, at 44. He was one of 34 victims who were killed aboard the Conception — 33 passengers and a new deckhand — trapped below deck on a scuba diving boat that caught fire and sank off the Southern California coast. The boat's captain — one of five crew members who survived — was indicted Tuesday on federal manslaughter charges for one of the deadliest maritime disasters in modern U.S. history.

“It was so hard to look at pictures of him at first,” Kathleen “Mama K” McIlvain said as she stared at the faded photographs in her lap, “because you just expected him to walk in the door.”

The McIlvains and the 33 other grieving families have endured a year of firsts — the first anniversary, first birthdays, first holiday season without their loved ones — amid the coronavirus pandemic. It's forced them to grieve both alone, canceling memorials where they'd planned to scatter the ashes at sea, and together over Zoom.

In this March 2018, photo provided by Maggie Strom, is Ted Strom at Point Lobos State Natural Reserve, Calif. Strom, of Germantown, Tenn., was a staff physician at the Memphis Veterans Affairs Medical Center. He was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Maggie Strom via AP)

In this March 2018, photo provided by Maggie Strom, is Ted Strom at Point Lobos State Natural Reserve, Calif. Strom, of Germantown, Tenn., was a staff physician at the Memphis Veterans Affairs Medical Center. He was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Maggie Strom via AP)

The first year has also propelled them into action: The families have formed a group they're calling “Advocacy34” to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck.

Legislation covering some of the changes the families have championed for passenger vessels like the Conception is included in the National Defense Authorization Act currently before Congress. A vote hasn't been scheduled, but previous bills have traditionally passed with bipartisan support. This year, however, President Donald Trump is threatening to veto the act unless it ends protections for internet companies that shield them from being held liable for material posted by their users.

“We will fight,” Kathleen McIlvain said Thursday at her Woodland Hills home. “If this doesn't get passed this time, they're not getting rid of us.”

This 2018 photo provided by Christine Dignam shows her husband Justin Dignam in Huntington Beach, Calif. Justin Dignam of Anaheim Hills, Calif., was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Courtesy Christine Dignam via AP)

This 2018 photo provided by Christine Dignam shows her husband Justin Dignam in Huntington Beach, Calif. Justin Dignam of Anaheim Hills, Calif., was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Courtesy Christine Dignam via AP)

Jerry Boylan, the boat's captain, was indicted Tuesday on allegations of “misconduct, negligence and inattention” by failing to train his crew, conduct fire drills and have a roving night watchman on the Conception. While federal safety investigators blamed the owners of the vessel, Truth Aquatics, for a lack of oversight, they were not charged with any crime.

In fact, Coast Guard records show the Conception had passed its two most recent safety inspections. The National Transportation Safety Board — which has the power only to recommend changes, not mandate them — has blasted the Coast Guard for what they describe as insufficient rules like a lack of a requirement for interconnected smoke detectors in all accommodation spaces and poor emergency escape arrangements.

The families — who have mounted a campaign of letter writing and phone calling to elected officials — say legislation is necessary so other lives aren't lost in future, preventable tragedies. U.S. Rep. Salud Carbajal, a Democrat whose district includes Santa Barbara County where the fire occurred, pledged to reintroduce the bill in the next congressional session if necessary.

FILE - In this Sept. 2, 2019, file photo provided by the Santa Barbara County Fire Department, is the Conception dive boat engulfed in flames after a deadly fire broke out aboard the commercial scuba diving vessel off the Southern California Coast. The families of the 34 people who perished have formed a group they're calling "Advocacy34" to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck. (Santa Barbara County Fire Department via AP, File)

FILE - In this Sept. 2, 2019, file photo provided by the Santa Barbara County Fire Department, is the Conception dive boat engulfed in flames after a deadly fire broke out aboard the commercial scuba diving vessel off the Southern California Coast. The families of the 34 people who perished have formed a group they're calling "Advocacy34" to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck. (Santa Barbara County Fire Department via AP, File)

“For me, I think I have to do this for my kids so that they see that their dad’s death was not in vain," said Christine Dignam, whose husband, Justin, died aboard the Conception at 58. "That we’re going to make some good things come out of this, even though we can’t bring him back.”

Justin Dignam loved Thanksgiving. The Anaheim Hills resident's favorite holiday always included a huge turkey and tons of side dishes. His family replicated it this year, and toasted his loss with a bottle of his favorite cabernet from a California winery, coincidentally and heartbreakingly named the Justin Vineyards and Winery.

“I know that we don’t die, we don’t die from grief, we don’t die from pain," Christine Dignam said. "But the world looks a little grayer than before.”

In this June 1993 photo provided by Kathleen McIlvain, Charles McIlvain, center, and his parents, Clark McIlvain, left, and Kathleen McIlvain, pose after Charles graduated from Taft High School in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

In this June 1993 photo provided by Kathleen McIlvain, Charles McIlvain, center, and his parents, Clark McIlvain, left, and Kathleen McIlvain, pose after Charles graduated from Taft High School in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

The blaze's cause remains under investigation and may ultimately remain undetermined. But Jennifer Homendy, the NTSB member who traveled to Santa Barbara in the wake of the tragedy, said regardless of what sparked the fire, there were conditions present on board that allowed it to grow undetected to a point where the 34 victims couldn't evacuate.

Homendy has worked with the families to push for the NTSB's suggestions to be implemented. The Coast Guard declined to comment on the federal legislation but a spokesman said the safety board's proposals are being considered and officials are reviewing the possibility of creating a safety management system regulation for passenger vessels.

"I’m always just taken aback by how much families dedicate time and just put their hearts into implementing our final recommendations to save somebody else’s life in the future," Homendy said. "To me, they’re the real heroes.”

In this August 1981 photo provided by Kathleen McIlvain is Charles McIlvain, backpacking in Sequoia National Forest, Calif. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

In this August 1981 photo provided by Kathleen McIlvain is Charles McIlvain, backpacking in Sequoia National Forest, Calif. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

As they wait for the recommendations to go through Capitol Hill, the families are also fighting civilly. The families of 32 victims have filed claims against the boat owners, Glen and Dana Fritzler, and Truth Aquatics. In turn, the Fritzlers and the company have filed a legal claim to shield them from damages under a maritime law that limits liability for vessel owners.

Maggie Strom said the families banding together has provided her comfort amid a year of nonstop grief as she quarantines with her two sons outside Memphis, Tennessee. Her husband, Ted, was killed two days before their eldest's 18th birthday.

She wonders what Ted, a 61-year-old staff physician at the Memphis Veterans Affairs Medical Center who delighted in fighting bureaucracy and writing letters to newspaper editors, would have thought about her foray into politics.

In this November 2017 photo provided by Kathleen McIlvain, Charles McIlvain and his wife, Jasmine McIlvain pose at a family Thanksgiving gathering in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

In this November 2017 photo provided by Kathleen McIlvain, Charles McIlvain and his wife, Jasmine McIlvain pose at a family Thanksgiving gathering in Woodland Hills, Calif. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

“Had this been the other way around, I know he would be the one advocating and be the one leading for change,” she said.

The couple planned to eventually move to Northern California, where they met and married in the late 1990s.

“He wanted to be an old, retired guy volunteering at the aquarium,” his widow said.

In this Dec. 2005 photo provided by Kathleen McIlvain of Charles McIlvain, he laughs while wearing a "bow hawk" made of gift wrap bows on his head at a Christmas family gathering. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

In this Dec. 2005 photo provided by Kathleen McIlvain of Charles McIlvain, he laughs while wearing a "bow hawk" made of gift wrap bows on his head at a Christmas family gathering. Charles McIlvain was one of 34 people killed when the dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Kathleen McIlvain via AP)

In this undated photo provided by Kathleen McIlvain, Charles McIlvain smiles for a photo. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Courtesy Kathleen McIlvain via AP)

In this undated photo provided by Kathleen McIlvain, Charles McIlvain smiles for a photo. Charles McIlvain was one of 34 people killed when dive boat Conception caught fire and sank off the coast of California on Sept. 2, 2019. (Courtesy Kathleen McIlvain via AP)

FILE - In this Sept. 12, 2019, file photo, the burned hull of the dive boat Conception is brought to the surface by a salvage team in the Santa Barbara Channel off Santa Cruz Island in Southern California. The families of the 34  people who perished in the boat fire on Sept. 2, 2019, have formed a group they're calling "Advocacy34" to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck. (Brian van der BrugLos Angeles Times via AP, File)

FILE - In this Sept. 12, 2019, file photo, the burned hull of the dive boat Conception is brought to the surface by a salvage team in the Santa Barbara Channel off Santa Cruz Island in Southern California. The families of the 34 people who perished in the boat fire on Sept. 2, 2019, have formed a group they're calling "Advocacy34" to push for strengthened boating regulations and requirements for passenger vessels, such as improved fire and safety training protocols and the installation and use of monitoring devices that would ensure there's a night watch on deck. (Brian van der BrugLos Angeles Times via AP, File)

In this May 2019, photo provided by Maggie Strom is Ted Strom, right, and from left, Maggie Strom and their sons Kestrel and Pfeiffer at Kestrel's High School Graduation in Memphis, Tenn. Strom, of Germantown, Tenn., was a staff physician at the Memphis Veterans Affairs Medical Center. He was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Courtesy Maggie Strom via AP)

In this May 2019, photo provided by Maggie Strom is Ted Strom, right, and from left, Maggie Strom and their sons Kestrel and Pfeiffer at Kestrel's High School Graduation in Memphis, Tenn. Strom, of Germantown, Tenn., was a staff physician at the Memphis Veterans Affairs Medical Center. He was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Courtesy Maggie Strom via AP)

In this 2018 photo, provided by Christine Dignam is her husband Justin Dignam, left, and their daughter Taylor at Santa Catalina Island, Calif. Justin Dignam was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Christine Dignam via AP)

In this 2018 photo, provided by Christine Dignam is her husband Justin Dignam, left, and their daughter Taylor at Santa Catalina Island, Calif. Justin Dignam was among 34 people who perished when fire swept through the Conception dive boat off the coast of Southern California on Sept. 2, 2019. (Christine Dignam via AP)