Mark was born in 1872. He passed away in 1951.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MG4N-YT3 : accessed 21 December 2017), Mark K Edgar, Scranton Ward 13, Lackawanna, Pennsylvania, United States; citing enumeration district (ED) ED 99, sheet 11A, family 217, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1360; FHL microfilm 1,375,373.
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