"United States Census, 1880," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:M83Q-KX1 : 14 January 2022), John Guy, Van Wert, Van Wert, Ohio, United States; citing enumeration district ED 150, sheet , NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm .
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMXN-4BL : accessed 17 September 2022), J T Guy, Pleasant Township Van Wert city Ward 1-2, Van Wert, Ohio, United States; citing enumeration district (ED) 87, sheet 12A, family 290, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,329.
"Ohio, County Marriages, 1789-2016", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Z8H2-V6ZM : 13 October 2021), John T. Guy in entry for James A. Guy and Emma J. Washington, 1902.
"Ohio, County Death Records, 1840-2001," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:F6C5-SK9 : 1 March 2021), John T. Grey in entry for James Alonzo Grey, 17 Apr 1924; citing Death, Van Wert, Pleasant Township, Van Wert, Ohio, United States, source ID item 1 cn 34, County courthouses, Ohio; FHL microfilm 1,952,878.