At time of WWI Draft in 1918, Dennis Francis McCahill was 34 years old and living in Westmoreland, Pennsylvania with wife Barbara. Dennis was self-employed as proprietor of a hotel. Birth cited as August 7, 1884 in Westmoreland.
↑ United States, Selective Service System. World War I Selective Service System Draft Registration Cards, 1917-1918. Washington, D.C. Registration State: Pennsylvania; Registration County: Westmoreland; Roll: 1927075; Draft Board: 8. Ancestry.com. U.S., World War I Draft Registration Cards, 1917-1918 [database on-line]. Ancestry Record 6482 #10843488
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M34L-5YS : accessed 25 December 2020), Dennis Mccahill in household of John Mckenna, Carroll Townshi,p Precinct 1, (excl. Monongahela city), Washington, Pennsylvania, United States; citing enumeration district (ED) 126, sheet 14A, family 248, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,493.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XHHP-WN5 : accessed 24 December 2020), Dennis F Mccahill, Monessen, Westmoreland, Pennsylvania, United States; citing enumeration district (ED) ED 92, sheet 13A, line 46, family 261, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2157; FHL microfilm 2,341,891.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K7FJ-THG : 14 May 2020), Denny Mccahill, Laurel, Election District 10, Prince George's, Maryland, United States; citing enumeration district (ED) 17-33, sheet 13A, line 32, family 233, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 1557.
Find a Grave, database and images (https://www.findagrave.com : accessed 24 December 2020), memorial page for Dennis McCahill (1884–1974), Find A Grave: Memorial #33188999, citing Saint Marys Catholic Church Cemetery, Laurel, Prince George's County, Maryland, USA ; Maintained by C (contributor 46588217) .