With Pearl Harbor survivors well into their 90s and some passing the century mark, their numbers are shrinking not just in Louisiana, but all over the United States. How many of the 60,000 or so survivors are left? Nobody seems to know, exactly.

Last year, 2,000 to 2,500 survivors were thought to be still alive, according to Eileen Martinez, chief of interpretation for the USS Arizona Memorial.

“They are in their twilight years, so now is the time to honor them and thank them for their service,” she told the Reuters news agency last year

On (December 7, 2014), four of the nine remaining members of the USS Arizona Reunion Association gathered with dozens of other World War II veterans at the Pearl Harbor Visitor Center in Honolulu to commemorate the 73rd anniversary of the Japanese attack, according to Reuters