JosephHemphill on Family Tree Circles

My family came from Chester County. We have traced the family to Alexander Hemphill (B 1710) who came to the new world from County Derry, "Near Londonderry" about 1740 with two sons (James - 1731 and Joseph - 1732) and daughter Mary (1735) and settled in Goshen, Chester County, Pa. No record of a wife. Alexander died 15 Apr 1768 in Goshen Twnsp, Chester County, Pa. My information from that point on is pretty complete. What I am interested in, is any information that will lead me back from Alexander.