We know of five (5) children born to Mary and Josiah.
Mary, Josiah, and Gatsie (daughter) BULLOCK were enumerated in the Milam County, TX Census in Dec 1880. We have been unable to find anything about them after that . . . . . except for Josiah's death date that was recorded in an old family Bible.
Also found is the original marriage certificate for Gatsie BULLOCK and D. S. GRAY on 23 Dec 1880 in Milam County, Texas.