Martin was born about 1857.
"United States Census, 1870", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MH5J-RYZ : 3 January 2021), Martin Munhall in entry for Patrick Munhall, 1870.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZDY-PVB : 19 February 2021), Martin Munhall in household of James Flannery, New York, New York, New York, United States; citing enumeration district ED 101, sheet 594A, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,871.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2VW-9GN : accessed 4 March 2021), Martin H Munhall in household of J William Bennke, Cambridge Ward 5, Middlesex, Massachusetts, United States; citing enumeration district (ED) ED 757, sheet 7B, family 162, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 595; FHL microfilm 1,374,608.
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