Chanced across your message of 3 September 2001 and wondered if you're aware your cousin was a Coast Guardsman, not a member of the navy. He was serving with a naval unit because the Coast Guard traditionally is integrated into the navy during wartime or national emergency. The following corrects minor errors in the information given at the American Battle Monuments Commission (ABMC) website:
John Joseph Alcorn, Machinist's Mate Third Class, 22 30 39, United States Coast Guard was declared officially dead 1 November 1945. There is a memorial inscription on the Tablets of the Missing at American Battle Monuments Commission Manila Cemetery, Fort Bonfacio, Philipiines.