I was able to locate Grandy & Sallie in the 1930 census for Washington County. They have in their house their 17 year-old daughter Ida and her husband, 22 year-old Theodore Hassell. Ida & Theodore had been married about 2 years. You didn't indicate if you'd located them in 1930, so I thought I would share. They are listed in Lees Mills, Sheet 7B, Family #143.
In the 1920 census they are enumerated in Lees Mills, Sheet 14B, Family #268. Only one child in the home, 7 year old Ida
I found a birth record for a daughter of his born November 12, 1916 in Washington County - Rubie Burgess
I'll look later to see if there is anything else that may be of help for you.
NCGenWeb Coordinator for Washington County - http://www.ncgenweb.us/washington