- Maintained by: Cape Gloucester
- Originally Created by: US Veterans Affairs Office
- Added: 3 Mar 2000
- Find a Grave Memorial 3784392
Find a Grave, database and images (https://www.findagrave.com : accessed ), memorial page for PFC Walter Lloyd Mattern (25 Jan 1915–22 Jul 1944), Find a Grave Memorial no. 3784392, citing National Memorial Cemetery of the Pacific, Honolulu, Honolulu County, Hawaii, USA ; Maintained by Cape Gloucester (contributor 46781474) .