Mrs. Sarah McKeen, grandmother of Harriet Bowdre whom shewas instructed to care for was: Sarah Unknown, born 4 March 1781 in Virginia. She died 30 July 1863 in Georgia. She is buried in Oconee Cem. in Athens, GA.
She married Robert McKeen, b. c. 1768 in NY. He died 24 Aug. 1822 in Powellton, Hancock Co. GA. He was at one time the proprietor of the Mansion Holtel inAugusta, GA
I was given this information, said to be from a compiled McKeen genealogy which I have not seen.