I don't have much information on the Stamps family and what I do have is basically second hand information that I have not documented. The minutes of Indian Creek Baptist Church in Carroll Co., GA are on microfilm and contains many, many references to the Stamps and Easons who left Coweta Co., GA. The Stamps and Eason families helped organize the church. Many of my wife's Gay relatives are mentioned in the minutes,specifically Gilbert and Sarah Gay. I wish I could be of more help.
I know that the above minutes can be found at the Bowdon Georgia Library and at the Neva Lomason Library in Carrollton, GA. I don't know if they are at any other location. In the meantime I will give your name and email address to a family researcher who I know has more Stamps' information than I do.
Good luck in your search. If I can be of further help let me know.