Elsie Marie Mann; died 1919; Kansas

I'm trying to find my family history and am trying to find information about Elsie Marie Mann (Netzer?). I think she died in 1919, went to school at Osage Mission School in St. Paul, KS. She is said to be an American Indian. Her father's name was Levi Mann. I'm not sure of her Indian name. If you have any information on her past please e-mail me at [email protected] you!