Greetings, We are in the process on following up on considerable number of Y DNA contacts of 37 markers, between Rhineland and Palatine matchs with Volga Germans which go back to the 1710 era migrations to Pennsylvannia and the Virginia colonies as part of the Queen Anne’s migration. These other “contact relatives” have 1766 era relatives at the 37 marker level in the Volga colonies. This is pretty well documented. However, the catch is that some of these Volga contacts first came out of Silesia before going to the Volga in 1765-66. This very handy for tracing origin of these Silesia families, but leaves open another whole series of questions, i.e... when did this prior “migration” occur and what was it’s size? And why the shift in residence from Frederick’s Prussia to his arch enemy Catherine’s land. I recognize that Catherine settled their differences in 1709 after the partition of Poland, and long after the original Volga German 1765-66 migration. However after 1709, many of Frederick’s Mennonites opted to migrate to Catherine’s Ukraine, which she had just won from the Ottoman Empire. In related matters note that the Prussians invited the Netherland Mennonites to the area below Danzig, which was a very swampy about 1509. The Prussians were interested in Dutch style windmills which became quite plentiful thereafter. Frederick was very interested in reclaiming the land and bringing in Germans for the agriculture. But the question is, when did he start this process, as he did it in earnest after 1709 partition and he acquired 1/3 of Poland? He only came to the throne much later than the initial Mennonite invitation, when his father died. I have a Catholic grandmother’s line which migrated from Marienberg, just in the shadow of Danzig to the Volga in 1765. This begs another question, when did the recruitment of Palatine Catholics start being recruited to the Danzig area? The Deutschendorf genealogy (John Denver’s family) made the migration from Danzig to the Ukraine after 1709. It was only later that the Silesia ownership question was answered and Germans were recruited from the Palatinate to Silesia. These are the people who share Y DNA with my mother’s family. I would greatly appreciate in knowing of GR ancestory which had a presence in Silesia and or Danzig or Marienberg, Poland. Thank you very much. Frank Jacobs fjacobs@cox.net