Sarah Dierstine's father is Michael Dierstine b. 31 May 1712 d. 6 Jun 1777 (buried in Rockhill). Michael married Agnes Kolb b. 8 Mar 1713 d. 31 July 1776. Michael arrived in Philadephia aboard the ship "Samuel" on 11 Aug 1732. His name is Swiss, and he immigrated through Palatinate. His occupations are listed as weaver and miller.
Thanks to Donna Bluemink for much of this information, and for the hours of research she does to edify us.