Charles Kincheloe sister was Mary Kincheloe, born 1763. She married Henry Tiffin II, my g-g-g grandfather. There is a old letter to Henry Tiffin's brother, Dr. Edward Tiffin.He was the first gov. of the state of Ohio in 1803 and there are two letters in Chilicothe, Ohio.One is a contract by Henry Tiffin, Henry II's father for Edward to go to Med school in PA and the other is a letter of recomendation from George Washington for Edward Tiffin.
Lots of data on Tiffin in RootsWeb WorldConnect also.