Mary, I would write to the cemetery and ask about Interment Records for him. I think I would also write to the county he died in for a death record search. There may also be an obituary in a local paper-so the library is another option. If all of this fails, send to the NARA for a copy of his pension file. It will give the date of death (usually) to show when and why they terminated benefits. If this fails and he had a surviving widow, send for the widow's pension file application. Hope this helps. Pam