Sons of Charles Rose Harper

I'm interested in finding ancesters for Charles Rose Harper, born about 1824 in Vincennes, Knox County, Indiana and died April 13, 1889 in Kaufman Co., Texas. Dr. Harper served in the 2nd Reg., Texas Partisian Rangers in the Civil War. He married Susan Bain, born about Sept. 1838 in Oldham Co., KY and died in Oct. 1905 in Frederick, Tillman Co., OK.

Pictured are the four sons of Charles Rose Harper, Tilford Edward, Charles Lee, Matthew Drake, and Alonzo Llewellan.

Any help with his ancesters would be appreciated. We have his wife's family and their children, etc.

People in photo include: Charles Rose Harper's Sons