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- [S291] Manessis, Dennis (I23076): 1920 US Census, (www.ancestry.com (2005): National Archives and Records Administration micropublication T625, roll 1088, enumeration district (ED) 83, sheet 15B, page 155B, line 83, dwelling 302, family 334; image accessed 1/4/2009.), 1920.NY.Cattaraugus.Olean Ward 8.83.30.
- [S290] Manessis, Dennis (I23076): 1910 US Census, (www.ancestry.com (2006): National Archives and Records Administration micropublication T624, roll 927, enumeration district (ED) 78, sheet 6A, page 95A, line 20, dwelling 120, family 137; image accessed 1/4/2009.), 1910.NY.Cattaraugus.Olean.78.11.
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