"Maryland County Marriages, 1658-1940," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q297-JXHD : 17 March 2018), Milton Z Mattingley and Catharine P Pope, 03 Mar 1908; citing St Mary's, Maryland, United States, clerk of the circuit court from various counties; FHL microfilm 989,062.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2NS-6RB : accessed 5 January 2023), Catherine C Mattingley in household of Zach M Mattingley, Leonard, St Mary's, Maryland, United States; citing enumeration district (ED) ED 83, sheet 11A, family 118, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 568; FHL microfilm 1,374,581.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:X34T-LLB : accessed 5 January 2023), Catherine P Mattingly in household of Jack M Mattingly, Leonardtown, St Mary's, Maryland, United States; citing enumeration district (ED) ED 5, sheet 8B, line 72, family 138, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 879; FHL microfilm 2,340,614.
Find a Grave, database and images (https://www.findagrave.com/memorial/26703461/catherine-palace-mattingly: accessed 04 January 2023), memorial page for Catherine Palace Pope Mattingly (Feb 1886–30 Sep 1965), Find a Grave Memorial ID 26703461, citing Saint Francis Xavier Church Cemetery, Compton, St. Mary's County, Maryland, USA; Maintained by RosalieAnn (contributor 46559872).[1]
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