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Soc.gen.med, Ed Mann, John Ravilous "de Birkin of Laxton, Nottinghamshire", 22 S...
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Soc.gen.med, Ed Mann, John Ravilous "de Birkin of Laxton, Nottinghamshire", 22 Sep 2004. Cited by Adrian Oates, Red First Emma de Lascelles Accessed Feb 27, 2018. jhd