Propst/Dreher Family Connections

Reasearching the following names:DREHER 1700-PRESENT Ger>PA>SCHILLER 1700-PRESENT PROPST 1700-PRESENT Ger>PA>NC>SCCOOPER-1700-PRESENT Eng>VA>TNHEISE-1700-PRESENTMILLS(PETER VAN DER MUELLIN) 1624-PRESENT(CONN)SNYDER-1600-PRESENT WISCONSINGREGORY-1600-MINNESOTA-WISCONSIN AREAHOMUTH-1600 MINNESOTA -WISCONSIN AREASHULER 1700-PRESENT SCI am currently focusing my research on my DREHER,DRAYER, DREYER, DREER, DRIER, TRAYER, TRARER family. My biggest problem has been to determine if the JOHANNES DREHER who came to PA in 1738 or if my immigrant ancester came straight to SC in the 1745 period. Most of the family researchers have gone with the PA JOHANNES DREHER but we have no documentation source to verify this.