I am related very distantly to Rev. Alexander Adams.His granddaughter, Esther Kealear (Keeler?) was married to my 3x great grandfather's brother's son, James Beatty Campbell.In the History of Indiana County, PA written by J. A. Caldwell in 1880, I found the following:
"The maternal grandfather of Mrs. Esther Campbell, a son and a daughter, were massacred by the Indians in or near Hannastown."
Esther's maternal grandfather is Rev. Alexander Adams.