Dear Charles, you mention that "Marvin Herzog of Columbia University
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did this for parts of northern Poland."
Can you describe this work in more details? Which work was done? Based
on which data? Which results were received?
From: Charles Nydorf <firstname.lastname@example.org>
Date: Mon, 20 Jul 2009 08:16:26 -0400
Research done by linguistics on geographical patterns of variation in
Yiddish have long demonstrated that the founder effect is a real
factor in the Jewish settlement of eastern Europe. Single communities
were apparently often founded by a small group of people and these
communities budded off to settle the surrounding area. Specific areas
settled by people >from a single community, descendants of the small
group that founded the community can be identified on the map. My
mentor, Marvin Herzog of Columbia University did this for parts of
It seems to me that genealogists could take advantage of this and
identify sets of ancestors associated with particular areas.