↑ "United States Social Security Death Index," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VMDW-BWB : accessed 5 January 2015), E WALLACE ROSS, 18 Oct 2010; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
See also:
"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X7N8-X8L : accessed 5 January 2015), Endard W Ross in household of Charles F Ross, Lebanon, Grafton, New Hampshire, United States; citing enumeration district (ED) 0027, sheet 16A, family 308, line 47, NARA microfilm publication T626, (Washington D.C.: National Archives and Records Administration, 2002), roll 1300; FHL microfilm 2,341,035.
"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VTMB-KVS : accessed 5 January 2015), Wallace Ross in household of Charles F Ross, Lebanon Town, Grafton, New Hampshire, United States; citing enumeration district (ED) 5-38, sheet 8A, family , NARA digital publication of T627, roll 2287, NARA digital publication of T627, National Archives and Records Administration, Washington, D.C.