Check out these great websites for looking up your ancestors to try and locate where they were buried (if they were buried).
https://billiongraves.com/
https://www.findagrave.com/
https://www.ancestry.com/search/collections/60525/
https://www.familysearch.org/en/cemeteries/
https://www.interment.net/us/nat/veterans.htm
https://www.cem.va.gov/find-cemetery/all-national.asp#greenscreen
https://gravelocator.cem.va.gov/ngl/#iframe-content
http://www.usgwtombstones.org/index.html
https://ldsgenealogy.com/cemetery-records/
https://www.deathindexes.com/cemeteries.html
https://iowagravestones.org/gpp-info.php
