Can't find Wilmer/Wilmar R Newborn in SS death index,
or any other source, he would be 83 yrs old....
Did you try to post on the rootsweb Military mail list?
Good luck in your search

1930 census
Name: Wilmar R Newborn
Age: 4-1/12
Estimated Birth Year: abt 1926
Relation to Head of House: Son
*Father's Name: Robert J age 32 1898, bn TX
Mother's Name: Flora age 24 bn MS
children
Wilmar R 4-1/12 bn. LA
Felston O 2 bn LA
Source Citation: Year: 1930; Census Place: Police Jury Ward 8, Franklin, Louisiana; Roll: 793; Page: 11A; Enumeration District: 20; Image: 1114.0

1910
Name: Robert Menbern
[Robert Newborn]
[Robert Mewborn]
Age in 1910: 10
Estimated Birth Year: abt 1900
Birthplace: Texas
Father's Name: J R
Father's Birth Place: Georgia
Mother's Name: Francis
Mother's Birth Place: Texas

Source Citation: Year: 1910; Census Place: Police Jury Ward 4, Vernon, Louisiana; Roll: T624_533; Page: 21A; Enumeration District: 148; Image: 1276