I am looking for confirmation on Mary G. DeLong my great grandmother. Formally known as Mary G. Cross. She was born in 1872. She is known to be OVER 50% Santee Sioux. But not known if she was 100%, even doubtful. She had a daughter on the Santee Sioux reservation (my grandmother ) named Flora Gladys DeLong. What I want to know is .... Who is her mother. It is told, but I can not link it. That her mother was Hannah Olive Gammell, daughter of Mary Woodbury ( Taliaferro ).