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- [S1151] Hatch, George C. (I17670): 1900 US Census, (www.ancestry.com (2004): National Archives and Records Administration micropublication T623, roll 1409, enumeration district (ED) 134, sheet 8B, page 164B, line 93, dwelling 215, family 215; image accessed 12/30/2008.), 1900.PA.Erie.Union City.134.17.
- [S1136] Hatch, Horace (I17741): 1850 US Census, (www.ancestry.com (2005): National Archives and Records Administration micropublication M432, roll 777, page 5, line 42, dwelling 69, family 69; image accessed 12/30/2008.), 1850.PA.Erie.Amity.9.
- [S1138] Hatch, Horace (I17741): 1860 US Census, (www.ancestry.com (2004): National Archives and Records Administration micropublication M653, roll 1107 enumerated page 1, master page 1, line 10, dwelling 1250, family 4; image accessed 12/30/2008.), 1860.PA.Erie.Amity.1.
- [S1141] Hatch, Horace (I17741): 1870 US Census, (www.ancestry.com (2003): National Archives and Records Administration micropublication M593, roll 1339, enumerated page 5, master page 113, line 36, dwelling 43, family 43; image accessed 12/30/2008.), 1870.PA.Erie.Amity.5.
- [S1150] Hatch, George C. (I17670): 1880 US Census, (www.ancestry.com (2005): National Archives and Records Administration micropublication T9, roll 1127, enumeration district (ED) 140, enumerated page 11, master page 6C, line 45, dwelling 88, family 88; image accessed 12/30/2008.), 1880.PA.Erie.Amity.140.11.
- [S1152] Hatch, George C. (I17670): 1910 US Census, (www.ancestry.com (2006): National Archives and Records Administration micropublication T624, roll 1343, enumeration district (ED) 133, sheet 28A, page 163, line 34, dwelling 66, family 701; image accessed 12/30/2008.), 1910.PA.Erie.Union Ward 1.133.25.
- [S1509] Hatch, George C: Obit (Union City), (Public Library, Union City, Pennsylvania, online at ).
- [S1137] Hatch, Horace (I17741): Obit (Erie), (2 April, 1891, Erie, Pennsylvania).
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