I am researching my maternal grandmother, Zelda Ginn, and her parents, Zalmon Ginn and Sara Serefsky. Her alien Registration file provides no information. other than her entry port (NYC). I can not find a vessel etc. I did locate her brother's family in Denver, Co. We discover a Zalmon Ginn on another family tree on Ancestry.com but the moderator claims that it is not the same Zalmon Ginn. I have tested at 23andme and ancestrydna.com with hits. I have a family tree at Ancestry.com. My maternal grandfather, Samuel Grass, also came from Kaunas, Kauno Miesto Savivaldybe, Lithuania. I have been able to trace his ancestors. 
any suggestions.

Robert A. Faneuil
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Needham, MA 02494
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