↑ "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MXS6-CY7 : accessed 19 February 2017), Harry D Downing, Philadelphia Ward 33, Philadelphia, Pennsylvania, United States; citing ED 1114, sheet 3A, line 1, family 56, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1626; FHL microfilm 1,821,626.
↑ "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XH4Q-QK1 : accessed 19 February 2017), Harry Downing, Philadelphia (Districts 1001-1236), Philadelphia, Pennsylvania, United States; citing enumeration district (ED) ED 1010, sheet 21A, line 3, family 375, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2131; FHL microfilm 2,341,865.
↑ "United States World War I Draft Registration Cards, 1917-1918," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KXBD-21B : 12 December 2014), Harry David Downing, 1917-1918; citing Steuben County no 2, New York, United States, NARA microfilm publication M1509 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,818,990.
↑ "United States World War II Draft Registration Cards, 1942," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VQFJ-NDH : 7 April 2016), Harry David Downing, 1942; citing NARA microfilm publication M1936, M1937, M1939, M1951, M1962, M1964, M1986, M2090, and M2097 (Washington D.C.: National Archives and Records Administration, n.d.).
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