"Iowa, Grand Army of the Republic Membership Records, 1861-1949," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q23N-SSV7 : 17 March 2018), William R Craig, 1861-1949; citing Iowa, United States, Military Service, State Historical Department, Des Moines; FHL microfilm 1,487,402.
"Iowa, County Marriages, 1838-1934," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KCWD-2SY : 5 November 2017), William R. Craig and Jane Elizabeth Ellsworth, 13 Nov 1857, Hardin, Iowa, United States; citing reference p 17, county courthouses, Iowa; FHL microfilm 1,034,939.
"United States Census, 1880," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MD2N-VC6 : 14 January 2022), William Craig, Eldora, Hardin, Iowa, United States; citing enumeration district , sheet , NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm .
"Iowa, Armed Forces Grave Registrations, ca. 1835-1998," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2QV-FFF7 : 11 February 2019), William R Craig, 10 Jun 1909; citing Marshalltown, Marshall, Iowa, United States, The State Historical Society of Iowa, Des Moines.; FHL microfilm 2,169,151.