I am searching for my moms great grandfathers.My mom (Lavonia Lacille) was born in 1941 in TX. Her father was David Tony Lock who drown? in 1949. David Tony Lock married Linnie Mae Kersh. David Tonys father was John Lock and mother was Martha Ann?. Tony had a brother named John H (possibly Haldon)and two sisters (Lavonia and Juanita). All four of five of these kids were born in Alabama. John Locks father was William D. Lock and Wife Mary A.John had a brother Joseph E.who may have married a Nancie. I am having trouble finding any of these people as the missing link is David Tony Lock who died when he was only 42.Since he had all daughters who did not know much about their dad or grandparents, I am at a loss.Any help would be great.