Marty owned the Silver Dollar bar in Leadville, Colorado.
Fact: Census (1920) Leadville Ward 3, Lake, Colorado, United States
Fact: Census (1930) Leadville, Lake, Colorado, United States
Fact: Residence (1935) Same Place
Fact: Census (1940) Ward 3, Leadville, Election Precinct 3, Lake, Colorado, United States
Sources
1920 Census: "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MX2B-3NK : accessed 22 December 2015), Martin D Mcmahon in household of Maybelle Mcmahon, Leadville Ward 3, Lake, Colorado, United States; citing sheet 4A, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,165.
1930 Census: "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X74C-N5R : accessed 31 May 2018), Martin Mcmahon in household of Maybell Mcmahon, Leadville, Lake, Colorado, United States; citing enumeration district (ED) ED 8, sheet 3B, line 79, family 82, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 244; FHL microfilm 2,339,979.
1940 Census: "United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VR6X-HFY : accessed 22 December 2015), Martin Mcmahon, Ward 3, Leadville, Election Precinct 3, Lake, Colorado, United States; citing enumeration district (ED) 33-5, sheet 1A, family 5, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 466.
Death: "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JB4V-C4H : accessed 22 October 2015), Martin Mcmahon, Jul 1970; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
Marriage: "Colorado Statewide Marriage Index, 1853-2006," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KNQX-Z9J : 10 December 2017), Martin Mcmahon and Zora D Wurts, 04 Mar 1935, Leadville, Lake, Colorado, United States; citing no. 127, State Archives, Denver; FHL microfilm 1,690,108.
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