About Amos Gates
Texas State Historical Association http://www.tshaonline.org/handbook/online/articles/fga39
GATES, AMOS (1799–1883). Amos Gates, said to be the first settler in Washington County, was born in Kentucky on July 25, 1799, the son of William Gates. The Gates family was originally from Lincoln County, North Carolina. With the Kuykendalls they moved first to Miller County, Arkansas, in 1821 and then with Stephen F. Austin in December to Austin's colony. Gates accompanied his father on a trip to the mouth of the Brazos to purchase flour in 1822 and voted in a colonial election in 1824. He participated in a punitive expedition against a band of Indians in September 1829. The expedition, ordered by Austin and commanded by Capt. Abner Kuykendall, engaged the Indians above the site of present Austin near the Salt Fork of the Lampasas. Gates acted as a spy under Travis. At the time of his death on May 3, 1883, he was the oldest resident of Washington County. He was buried at Graball Cemetery, Washington County.
From Find A Grave:
AMOS GATES - a member of the original "Old Three Hundred" according to the State of Texas who erected this monument at his grave in 1936. The Old Three Hundred refers to the original settlers of Texas with Stephen F. Austin. His middle name has been recorded by some as Valentine.
Amos arrived in Texas with his father, William and brother Samuel L. Gates - both of whom are likely buried in the Gates-Perry Family Cemetery with headstones worn away and illegible.
Amos married LYDIA LAKEY about 1805. She was the daughter of Joel Leakey (spelling change in name at different times)and Nancy Calloway. Lydia must certainly be buried in the Old Gates-Perry Family Cemetery with one of the smoothly worn-away headstones.
Amos Gates' mother, CATHERINE HARDIN GATES is buried next to him (south); then next to his mother lies his daughter, JANE GATES PERRY. Next to Jane is the broken headstone of her husband, Dr. D.A. PERRY. On the opposite side of AMOS GATES (north) is the headstone of WILLIAM MITCHELL DAVIDSON.
J. H. Kuykendall, "Reminiscences of Early Texans," Quarterly of the Texas State Historical Association 6–7 (January, April, July 1903). Worth Stickley Ray, Austin Colony Pioneers (Austin: Jenkins, 1949; 2d ed., Austin: Pemberton, 1970).