1881 census for Erin Twp. Sub District #3
21,95,John,MCMILLAN,M,40,Ontario,Disciple of Christ,Scottish,Farmer,M
21,95,Cath,MCMILLAN,F,37,Ontario,Disciple of Christ,Irish, ---,M
21,95,Willie,MCMILLAN,M,13,Ontario,Disciple of Christ,Scottish,Student,S
21,95,Margt,MCMILLAN,F,11,Ontario,Disciple of Christ,Scottish,Student,S
21,95,And.,MCMILLAN,M,9,Ontario,Disciple of Christ,Scottish,Student,S
21,95,Hugh,MCMILLAN,M,7,Ontario,Disciple of Christ,Scottish,Student,S

1901 census for Dryden lists John born 1840.  District: ON ALGOMA (#44) Subdistrict: Dryden N-1 Page 11
McMillan John M Head M 1840 60 
McMillan Kate F Wife M 1843 57 
McMillan Andrew M Son S Apr 9 1877 29 
McMillan Herbert M Son S Mar 21 1880 21 
McMillan Maggie F Daughter S Oct 10 1870 30