This image provided by Naval History and Heritage Command shows the view looks south from the munitions pier showing the wreckage of the Building A-7 Joiner Shop, right, from the July 17, 1944 explosion at Port Chicago naval weapons station near San Francisco. (Naval History and Heritage Command/Mare Island Navy Yard via AP)
Navy Secretary Carlos Del Toro signs documents exonerating 256 Black sailors who were unjustly court martialed in 1944 after the horrific Port Chicago explosion in California, as Navy Under Secretary Erik Raven looks on, Wednesday, July 17, 2024 at the Pentagon in Washington. (AP Photo/Tara Copp)
Thurgood Marshall, Jr., right, smiles as he receives the first pen from Navy Secretary Carlos Del Toro, Wednesday, July 17, 2024 at the Pentagon in Washington, after it was used to sign documents exonerating 256 Black sailors who were unjustly court martialed in 1944 after the horrific Port Chicago explosion in California. (AP Photo/Tara Copp)
Thurgood Marshall, Jr., right, smiles as he receives the first pen from Navy Secretary Carlos Del Toro, Wednesday, July 17, 2024 at the Pentagon in Washington, after it was used to sign documents exonerating 256 Black sailors who were unjustly court martialed in 1944 after the horrific Port Chicago explosion in California. (AP Photo/Tara Copp)
FILE - Navy Secretary Carlos Del Toro speaks at the National Press Club Headliners Luncheon in Washington, Feb. 21, 2023. The Navy has exonerated 256 Black sailors who were found to be unjustly punished in 1944 following a horrific port explosion that killed hundreds and exposed racist double standards among the then-segregated ranks. (AP Photo/Andrew Harnik, File)
This image provided by Naval History and Heritage Command, shows African American Sailors of a naval ordnance battalion unloading aerial bombs from a railcar, circa 1943/44, in Port Chicago, Calif. The U.S. Navy has exonerated 256 Black sailors who were found to be unjustly punished in 1944 following a horrific port explosion that killed hundreds of service members and exposed racist double standards among the then-segregated ranks. (Naval History and Heritage Command/National Park Service via AP)
This image provided by Naval History and Heritage Command shows the wreckage of the Building A-7 Joiner Shop in the center and munitions pier beyond, from the July 17, 1944 explosion at Port Chicago naval weapons station near San Francisco. (Naval History and Heritage Command/Mare Island Navy Yard via AP)