Seeking information regarding ancestry of Robert Walker (b. 6/13/1764, d. 2/8/1832) and Sarah Sill(b.10/19/1770,d.4/5/1850). They were married 11/9/1811 in Chester Co. Pa.? She is the daughter of Michael Sill (b.?,d. 5/26/1818) and Abigail Ottey (b.?,d.8/28/1820). I have Bible records and unidentified photos of this family that I am willing to share.