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A Lehman, Layman genealogy handbook
"A comprehensive summary of all known early Lehman families, including their European origins, by all spellings, with known descendants to at or about the advent of the 20th Century, authenticated by DNA tests."
- ""A comprehensive summary of all known early Lehman families, including their European origins, by all spellings, with known descendants to at or about the advent of the 20th Century, authenticated by DNA tests.""@en
- "A Lehman, Layman genealogy handbook"@en