This does seem like it could be the same fellow...if so,
his parents would have been Milton C. Earp and Annie Crowley

Milton's parents would have been
Demitrius Americus Earp and Mary Polly Pittman

and Demetrius' parents would have been
Elijah Earp and Sarah Jane Allen

William Earp and Edna Lou White had 2 girl children born in 1944. ...Betty Lou and Martha Sue..One died in infancy, presumably these were twins? Some sources say they had a daughter names Juanita, too. any confirmation on this?