Landsmanshaftn or immigrant mutual aid societies were organizations formed by immigrants from a common ancestral location. They provided to their members social benefits, raised funds for the needy back home and memorialized their towns after the Shoah. These “shtetl satellites" flourished wherever immigrants were found, especially in North America and Israel but also in Argentina, South Africa and Australia. Their study is an essential part of ancestral town research. Records kept by these organizations often reveal genealogical information not found elsewhere. Here one may learn about the activities and life of an ancestor or discover a lost or unknown branch of a family tree. This session will survey landsmanshaftn and their activities and acquaint the researcher with