Hi Kathy and Jim,
if interested you get some information about this Jacob Doersam (junior) having emigrated 1754 at http://andorama.bei.t-online.de/wmliste.htm .
His father Joh. Jacob Doersam (senior) married 13 Jan 1728
Anna Catharina Fischer of Falkengesaess.
The marriage-record's scan in Kirchenbuch Wald Michelbach:
http://home.arcor.de/ralledoe/dm/HJacobooFischer1728.jpg .
Greetings, Ralf