"Canada Census, 1881," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MVN5-KCS : 30 June 2017), John Johnson in household of William Johnson, Hereford East, Compton, Quebec, Canada; citing p. 4; Library and Archives Canada film number C-13198, Library and Archives Canada, Ottawa, Ontario; FHL microfilm 1,375,834. (Note: while John is shown as born in Quebec, the other children are listed on transcript record of census as born in Ireland -- this is an error, either in the original document or in the transcription, they were all born in Quebec.)
"Vermont Vital Records, 1760-1954," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XF3V-CTH : 6 December 2014), Thomas J. Johnson and Hannah Lanton, 03 Nov 1887, Marriage; State Capitol Building, Montpelier; FHL microfilm 540,106.
"New Hampshire Death Records, 1654-1947," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/FS2X-2ZV : 12 December 2014), Thomas J Johnson, 24 Aug 1898; citing Westmoreland, Bureau Vital Records and Health Statistics, Concord; FHL microfilm 1,001,087. (Note: Index record and Citation read Westmoreland, but original image shows West Stewartstown, New Hampshire as place of death with clerk's jurisdiction Stewartstown.)