The names of nearly 40 more heroic New York City firefighters who died from 9/11-caused illnesses were added to the FDNY’s emotional World Trade Center memorial at the department’s Brooklyn headquarters Tuesday.

The 39 heroes included generational firefighters who followed kin into the department, fathers who rushed into danger without a thought for their own safety, and people who went on to advocate for 9/11 first responders in the years after the 2001 disaster.

“He drove straight to the World Trade Center. He spent the whole day and night there. We did not know his whereabouts,” Nicole Doherty said of her father, retired Deputy Chief Nicholas J. Doherty, referring to Sept. 11, 2001.

“We heard from other fellow firefighters … they saw him at Ground Zero. So they wanted to tell my mom that he was alive and just to wait to hear from him in the rubble,” she recalled.

Her dad — who served three decades with the FDNY — died at age 80 on Sept. 20, 2024.

Among the other names added to the touching wall was that of firefighter Christopher J. Revere, whose wife said he died March 26 at 9:11 a.m. — which she took as a hopeful message from God.

“It is truly a sign that he is with the Father and our Son,” she said of her husband, who joined the FDNY in 1987 and retired in 2003.

A bell was rung at the ceremony as the name of each fallen FDNY officer was read aloud, while a family member or representative for each victim came to the front of the room and placed a white rose in their honor.

Tears of sorrow and pride were shed throughout the crowd, while a screen displayed photos of each of the victims.

At least 402 firefighters who contracted illnesses from their brave work on 9/11 — often cancers or respiratory ailments — have died and are represented on the FDNY’s memorial wall. Before Tuesday’s ceremony, there were 363 names on the wall.

Among the other heroes memorialized was firefighter Jose L. Hickson, 66, who dropped everything he was doing when he heard about the Towers attack and rushed into the fray — despite his daughter begging him not to go. He died from cancer April 9, 2024.

Capt. Thomas S. LaBarbiera, 51, died from cancer Sept. 1, 2024. LaBarbiera followed his father and two uncles into the FDNY and joined just two months before the Tower attacks.

He was out for a run on 9/11 in an FDNY t-shirt when an NYPD officer flagged him down and told him what happened. Without a second thought, LaBarbiera raced home and grabbed his gear and rushed to the nearest firehouse to help.

Firefighter Thomas L. Dunn, 52, died in February and joined his brother Jimmy — who died from 9/11-related illness in 2017 — on the wall. Dunn made numerous trips to Washington, DC, after he retired to lobby for victims of the terror attack.

The name of Lt. James S. Cooney, Sr., 77, was also added after his October 2024 death. He grew up hanging out at his father’s firehouse as a kid, served 25 years himself and four with the NYPD, and his two sons now serve the Fire Department themselves.

Then there was Lt. Anthony S. Cozzino, 51, an EMT who joined the FDNY in 1997 and retired in 2023. Cozzino died Sept. 7, 2024, just two months after he was diagnosed with cancer.

“Like many first responders, Anthony kept his life at work, and his family life completely private, so to us, he was always just husband and dad, and when we come here, we see that when he put that uniform on and went out into the city, he was so much more to so many people,” his wife Lori said at Tuesday’s ceremony.

“It’s always so bittersweet, and beautiful, and sad, we’re just always honored, but it’s always overwhelming every time we come to these beautiful ceremonies, because it just reminds us of what he sacrificed,” she said, adding that he never had any regrets about putting his life on the line that day.

On top of the hundreds of names on the wall, the FDNY lost 343 members in the carnage of 9/11. The NYPD lost 23 members, while nearly 3,000 people in total died that day.

More than 45,000 people are believed to be still struggling with side effects from the 9/11 attacks.

Around 1,900 are believed to have died from 9/11-related complications.