On Thu, Mar 18, 2021 at 02:21 PM, Phil Karlin wrote:

Klepfisz

JRI-Poland has a neat feature called Results Mapper, that shows where surname records are found, and how prevalent they are. For the exact spelling of Klepfisz, there are 617 records in 25 different towns, some near Warsaw, and some towns not quite so near. 



Back to DNA results - Another option is to have you and your possible cousin test with AncestryDNA, since you are both likely to find more matches there, and may be able to tell if you are both from the same Klepfisz branch or unrelated Klepfisz families.

I have two relatively rare Litvak surnames in my family, Kalon and Lak (Lock). For the Lak surname, there appear to be three unrelated clusters of families with the surname, in Telsiai, Zagare, and Vilnius. For Kalon, there appears to be two unrelated clusters of families, in Telsiai and Joniskis. I've had a hard time explaining to some of my relatives that not all Jewish Locks or Jewish Kalons are related.  
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Michele Lock

Lock/Lak/Lok and Kalon/Kolon in Zagare/Joniskis/Gruzdziai, Lithuania
Trisinsky/Trushinsky/Sturisky and Leybman in Dotnuva, Lithuania
Olitsky in Alytus, Suwalki, Poland/Lithuania
Gutman/Goodman in Czestochowa, Poland
Lavine/Lev/Lew in Trenton, New Jersey and Lida/Vilna gub., Belarus