At this point, the United States is losing on average 372 World War II veterans every day (2016 estimate). Given that we have about 558,000 such vets left in this country, they will likely number in the mere double digits by 2022.
You can research the service of many American WWII vets using Ancestry Library Edition (available at Central Library and our branches). The following record collections include information about American draft registrants, veterans, nurses, prisoners of war, casualties, and internees at WWII relocation camps. Note: Numbers in brackets are the number of individual records in that record collection.
Iowa, World War II Bonus Case Files for Beneficiaries, 1947-1959 [19,760]
Iowa, World War II Bonus Case Files, 1947-1954 [240,951]
Japanese Americans Relocated During World War II [109,377]
New Mexico, World War II Records, 1941-1945 [118,976]
New York Southern District, WWII Military Naturalization Index, 1941-1946 [2,366]
U.S., American Red Cross Nurse Files, 1916-1959 [1,491]
U.S. Marine Corps Muster Rolls, 1798-1958 [39,841,896]
U.S. Rosters of World War II Dead, 1939-1945 [357,086]
U.S. World War II Navy Muster Rolls, 1938-1949 [33,039,901]
U.S., World War II Army Enlistment Records, 1938-1946 [8,369,212]
U.S., World War II Cadet Nursing Corps Card Files, 1942-1948 [390,020]
U.S., World War II Draft Registration Cards, 1942 [15,283,470]
World War II and Korean Conflict Veterans Interred Overseas [159,582]
World War II Japanese-American Internment Camp Documents, 1942-1946 [89,390]
World War II Navy, Marine Corps, and Coast Guard Casualties, 1941-1945 [150,715]
World War II Prisoners of the Japanese, 1941-1945 [29,877]
World War II Prisoners of War, 1941-1946 [143,374]
World War II Young American Patriots, 1941-1945 [58,060]
Since countless official military personnel records of American Army veterans were destroyed in a 1973 fire at the National Personnel Records Center here in St. Louis, record collections like the ones listed above are more important than ever for veterans, their families, and others researching American participation in World War II.