UK-based society helps its members research their ancestors who came from German-speaking parts of Europe.

Kansas-based society assists its members research their genealogical roots back to Romania, Ukraine, and the Eastern Austrian Empire.

GRA provides genealogical research services and publishes a newsletter and a journal. Houses a large collection of migration materials.

Poland and Volhynia genealogy group provides research aids, translation aids, parish records, maps, and surname databases.