Not sure what your looking for but I found this, various spelling of last name and it is in Richland Parish....
Good luck in your search

1940 census
Name: Allen Statum age 21
Spouse: Lillie Statum age 21
Birth: both born abt 1919 - Louisiana
Residence: 1935 - Richland, Louisiana
Residence: Richland, Louisiana
child bettie age 4 abt 1936

1930 census
Name: Allen Statem
[Allen Statemer] ????? could not find under this spelling
Birth: abt 1918 - Louisiana
parents Chester age 32 bn Miss abt 1898
and Laura age 27 bn. Louisiana
Residence: 1930 - Police Jury Ward 2, Richland,Louisiana

ss death index
Name: Allen Staten
Birth: 25 Jul 1918
Death: Jan 1968
Civil: Louisiana

Trying to find anyone who remembers a Mr/Mrs Allen Statun in Rayville circa 1965. They had a son - Chester (DOB 04 July 1943) who died in Vietnam in 1965.

Chester should be on Vietnam Wall or on Vietnam list
or look at ancestry Military list for Vietnam.

Also try familysearch.org