txbirdlady on Family Tree Circles

I am searching for Betty Jane Mullins. Her father was John Mullins & mother was Hazel Burkhart Mullins. I think she may have been born in Collin County, Texas in 1936. She has a half brother named John R. Mullens in Lamar County, Texas.

My great great grandmother was Mary Leecie Gray (Guess)born in Llano County, Texas in 1883. She married James Amos Guess but I am unsure of the date or where they married. I do know they had their first child in 1898.
My grandmother said she was buried in Jumbo, Oklahoma some time between 1915 & 1929 by her parents. I do not know the names of her parents. I could not find her name listed in the Jumbo cemetery online archives but I am aware that there are many unmarked or lost graves there.
I would appreciate any information on the Gray family in this area of Oklahoma.