Some Suggested Resources
Odessa Digital Library, with a link to Tom and Jan Stangl, volunteers who will look up names in the National Archives rolls of EWZ files for you.
Gary Mokotoff, one of the most knowledgeable researchers in Eastern European countries.
U. S. Bureau of Land Management, General Land Office Records. The Official Federal Land Patent Records Site.
Ships and passenger listings of Germans from Russia.
USA National Archives
National Archives of Canada
Ellis Island search site
Microfilms of German parish registers in Hungary, Romania, & Yugoslavia made by Germans during WWII. The LDS FHL has a complete set of these (see Schmidt, Josef, Die Banater Kirchenbuecher [Institut fuer Auslandsbeziehungen Erlangen, 1979])