What I posted previously can be found in Tepper, "New World Immigrants," and Strassburger. Look for Pioneers From Staudernheim in Tepper, and the Snow Molly in Strassburger. It's a remarkable piece of documentation.
I have just finished research at York, PA and Frederick, MD, where her brothers settled, and I'm sorry to say I found almost no evidence of Anna Margarethe subsequent to her arrival in 1741. What is your source for the Lauterbach marriage? I have an Anna Margarethe Feyin (died 1784), widow Jung, marrying John Hopson on Jan 31, 1751 (Burial Book, Moravian Church, Lancaster, 1741-1821, Penn. Vital Records VI, Yoder (ed), p. 417). I've been assuming this is the woman to whom I am related.