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- [S2319] Holden, James W. (I21180): 1900 US Census, (www.ancestry.com (2004): National Archives and Records Administration micropublication T623, roll 1409, enumeration district (ED) 125, sheet 6B, page 194B, line 92, dwelling 138, family 139; image accessed 1/2/2008.), 1900.PA.Erie.Union.125.12.
- [S494] Greenwood, Paul C. (I21179): 1920 US Census, (www.ancestry.com (2005): National Archives and Records Administration micropublication T625, roll 1567, enumeration district (ED) 141, sheet 4B, page 196B, line 1, dwelling 82, family 88; image accessed 12/30/2008.), 1920.PA.Erie.Union City Ward 2.141.8.
- [S1628] Holden, Martha Lovina Alford Greenwood: Obit (U.C.), (Public Library, Union City, Pennsylvania, online at ).
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