Hi Betty, The Hendersons' in this book were originally from Scotland, moved to County Cavan Ireland and then on to PA. 1794. A father, Robert with his wife and four sons. All setteled in Mercer County. No reference to other kin. Sorry. Bob Prosser, Honolulu Hi Robert, My William HENDERSON, and his brother, Samuel HENDERSON, born 1780's in Co. Sligo, Ireland, were part of a family-group which left there in 1823, and went to Canada. I was wondering if that book mentioned people related to the PA HENDERSON's who went to different places - in different years. Betty (near Lowell, MA) (No one has been able to find out who the parents were of William and