I don't have a lot of info on Cora Ellen.I have her son's birth certificate (George Elmer Knight).He was born in Bryan Co., Oklahoma in 1895, and the certificate says his mother was Cora Ellen Kellen, born in Kentucky, and was 35 yrs old in 1895.
I think I have found this family in 1870 in Litchfield Grayson Co., Kentucky. pg 78.I have found them from 1850 to 1880, and their name is spelled differently in each census!I also found Cora's brother William M. Keelin in Fannin Co., TX in 1900.Bryan Co., OK is adjoining Fannin Co., TX border.
I think Cora married John W. Knight around 1890 (she was his third wife). He lived in the North Texas area (Denton Co., TX), and also Bryan Co. Oklahoma.They had children Ruth, James, and George, all born in Oklahoma. I think Cora Ellen Keelin Knight died prior to 1900, probably in Oklahoma.
I would like any information you have on this family.You can contact me direct at firstname.lastname@example.org.