Joseph Keenan was born in 1821, Monaghan, Ireland. He became a naturalized US citizen in 1890, at which time he was living in Rhode Island.
Joseph Keenan married Bridget Cunningham.
Patrick born 8 Mar 1873 in Begagh ?  Note: Birth in 1873 does not match info in 1915 Providence, RI census for Patrick Joseph Keenan:
Son Patrick Joseph Keenan was born in Ireland about 1878 (37 in 1915) and married Margaret about 1910 or earlier (in 1915, they had two children: Joseph, 4 and John, 2 months).
↑ "United States, New England Petitions for Naturalization Index, 1791-1906," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VX5B-MKN : 11 March 2018), Joseph Keenan, 1890; citing Rhode Island, NARA microfilm publication M1299 (Washington D.C.: National Archives and Records Administration, n.d.), roll 42; FHL microfilm 1,429,712.
↑ "Rhode Island State Census, 1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMMD-R12 : 11 March 2018), Patrick J Keenan, Burrillville, E.D. 084, Providence, Rhode Island; citing p. J, line 3, State Archives, Providence; FHL microfilm 1,765,395. Image accessed 2 October 2020.