Dana,
I don't know how much help this is but a Margaret Wagner was enumerated at Philadelphia,Pa on 8 Oct 1737 off of the "Charming Nancy".Aboard that same vessel was my 5g grandfather,Laurentius Nolff,his wife and family from Grossgartach,Germany,which is located about 50km south of Frankfurt.
Rumor has it that she later married Laurentius after the death of his wife.They settled in Heidelburg Twp,Northampton Co.,Pa. which is now in Lehigh Co.,Pa.

Best Regards
Bill Nulph