1880 Census: "1880 United States Federal Census" Year: 1880; Census Place: Shawnee, Frederick, Virginia; Roll: 1366; Page: 314C; Enumeration District: 041 Ancestry Sharing Link - Ancestry Record 6742 #18787386 (accessed 25 September 2022) Wm N Lupton (3), single in Shawnee, Frederick, Virginia, USA. Born in Virginia.
Military: "U.S., World War I Draft Registration Cards, 1917-1918" Registration State: Delaware; Registration County: New Castle Ancestry Sharing Link - Ancestry Record 6482 #22162514 (accessed 25 September 2022) Name: William Madison Lupton [William Madison Lufeton]; Race: White; Birth Date: 26 May 1877; Residence Date: 1917-1918; Street Address: 506 West 23th; Residence Place: Wilmington, New Castle, Delaware, USA; Draft Board: 2; Physical Build: Stout; Height: Tall; Hair Color: Brown; Eye Color: Brown; Spouse: Mary Ethel Lupton.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:C459-XT2 : accessed 26 September 2022), William N Lupton, Wilmington, New Castle, Delaware, United States; citing enumeration district (ED) ED 55, sheet 12A, line 39, family 193, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 289; FHL microfilm 2,340,024.
"Delaware Vital Records, 1650-1974," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QGNT-C7VK : 16 April 2022), Wm M Lupton, 1939; citing Death, United States, Delaware Public Archives, Dover; FHL microfilm .