Finding it strange nothing is found for John Ed Coutee...
did find Anna married to Oliver Mercer
she and Oliver are the only two I found any info. on.

1920 Grant LA
MERCER
Oliver 29 1891 la ms ms
anna 20 1900 la la la
gladys 3
Sylvia Bette 1.6

SSDI Annie Mercer 12/30/1899-May 1978 LA
SSDI Oliver Mercer 5/9/1892-1969 Slaughter, LA

WW1 Draft
Oliver Mercer
Rapides LA
b. 8/2/1892 age 24 married 1 child
born colfax, la