Hello Thresa Bailey, I'm PaSain. This original query is almost 5 years old.
Your grandfather's Social Security death record has him as Tom Colley 11 May 1902-Sept 1976. Texas death certificate says Thomas Henry Colley son of James Thomas Colley and Alpha Tullie Davis, both of Georgia. 1900 census record in Upshur county Texas, 1910 census in Young county Texas.
He was the 9th child known child and listed as Henry T in the 1910 census in Young County.
Good luck in your search !