From notes send by Mrs. Laurestine Robertson Doster, I will suggest that you are searching for:
John T. Doster b. ca 1866 in Coweta Co, GA, shows as Young Y. age 4 with father in 1870 Coweta Co census, as John T. with father in 1880 Coweta Co, GA census.Laurestine said he lived in Crawley, TX, died there, several children.
John T. was the son of:
John Garland Doster, b. ca 1845 in GA, likely Coweta Co, d. 9 May 1905, Bluffdale, Erath Co, TX, m 1/ Sarah Jane Jackson, on 3 Mar 1865, Coweta Co, GA. She died giving birth to John T., in 1866, and John Garland married 2/ her sister, Mary Aliff Jackson, born 1849, Coweta Co, GA, d. 29 Mar 1926, Amarillo, Potter Co, TX. Their parents were Seaborn jasper Jackson and Martha Ann Newton.
John T. had the following 1/2 brother: William Jasper Doster b. 1870, lived in Tarrant Co, TX, in 1910.
John Garland Doster was the son of:
Green Bury Doster, b. ca 1807, Putnam Co, GA, d. between 1860-70. He married 1/ 30 Oct 1834, Pamelia Garrett. He married 2/ Teresa Mason, b. ca 1806, in South Carolina.
Green B. Doster was the son of:
Thomas Doster, b. ca 1769, in GA (probably what became Wilkes Co, GA), d. after 1850. He married Deborah [unknown] b. ca 1762, NC.
Thomas Doster was the son of:
William Doster b. estimated 1732 in Frederick Co, VA, moved to Anson Co, NC, in 1763, then on to Wilkes Co, GA., where he died ca 1783. Married Margaret [unknown], probably in Frederick Co, VA.
William Doster was the son of:
Thomas Doster [the Emigrant] who d. 1748 in Frederick Co, VA, leaving a will.
Good luck with your search.Dot Barnum firstname.lastname@example.org