We haven't corresponded for a very long time, but I was just now reading your message from 2001. You weren't sure about the surname of Susanna Ros. That is correct.
In 2001 we went to the state archives in Speyer. There in a book of Catholic Church records (1681-1694) from Homburg/Saar, compiled by Walter Bohrer in 1990, I found a bit more about the MOLL family. In this book it is spelled MOL. Lucas MOL, citizen of Limbach, and his wife, Susanna ROSINE (using the feminine ending for ROS) had two children. One was our ancestor, Maria Catharina, born 11 Sep 1687; the other, Georg Jakob, born 23 May 1690 in Limbach. I don't know if that means they were the only children or not. Those dates may be the baptism dates, by the way. In another place I saw Susanna's name as ROSSL.