Could this be your family in the 1901 and 1911 Censuses?
Census of Canada, 1901 Province/Territory: Ontario District Name: TORONTO (Centre) (City/Cité) District Number: 116 Sub-district Name: Toronto (Centre) (City/Cité) Ward/Quartier No. 3 Sub-district Number: a-28 Schedule: 1 Reference: RG31 , Statistics Canada Microfilm Reel Number: T-6497 Finding Aid Number: 31-40 page 3 Lines 35-42 inclusive Dwelling 28 Family 28 McCutcheon WilliamMaleWhiteHeadMarriedb 7 August 1839 age 61 birthplaceIreland ruralImmigration date 1886Commercial Agent McCutcheon ElizabethFemaleWWifeMb 16 Jan 1832age 69bp Ireland rImm 1886IrishIrishPresbyterian- McCutcheon Mary AgnessFWDaughterSingleb 4 Nov 1865/6?age 35 bp Ireland urbanImm 1886IrishIrishPresbMusic Teacher McCutcheon Lizzie I.FWDaughterSb10 April1867/8?age 33bp Ireland uImm 1886IrishIrishPresbTraveler McCutcheon MargaretFWDaughterSb 7 Nov 1869age 32bp Ireland uImm 1886IrishIrishPresb- McCutcheon Samuel I. MW SonSb 29 Dec 1870age 31bp Ireland uImm 1886IrishIrishPresbBook Keeper McCutcheon Leah M.F WDaughterSb22 March 1874age 27bp Ireland uImm 1886IrishIrishPresb- McCutcheon William R. MWSon Sb 1 Aug 1875age 26bp Ireland uImm 1886irishIrishPresbTraveler Residence: 107 McGill st.
Source:http://data4.collectionscanada.ca/netacgi/nph-brs?s4=ON&s1=toronto+centre&l=20&Sect1=IMAGE&Sect2=THESOFF&Sect5=FS31PEN&s10=1901&Sect6=HITOFF&d=GS31&p=3&u=http://www.collectionscanada.ca/archivianet/02012202_e.html&r=0&f=Shttp://data4.collectionscanada.ca/netacgi/nph-brs?s4=ON&s1=toronto+centre&l=20&Sect1=IMAGE&Sect2=THESOFF&Sect5=FS31PEN&s10=1901&Sect6=HITOFF&d=GS31&p=3&u=http://www.collectionscanada.ca/archivianet/02012202_e.html&r=0&f=S ------------------------------- Census of Canada, 1911 Province/Territory: Ontario District Name: Toronto North District Number: 126 Sub-district Name/ Description: ward 3 Sub-district Number: 84 Additional Information: certain pages of microfilm are of poor quality Reference: RG31 , Statistics Canada Microfilm Reel Number: T-20402 Page 12 Lines 30-36 inclusive Dwelling 95 Family 133 McCutcheon WmMaleHeadMarriedb Aug 1838age 72retired McCutcheon ElizabethFemaleWifeMb Feby 1832age 79none McCutcheon MinnieFdaughter[sic]Singleb Nov 1843 [sic]age 67[sic]----?at home McCutcheon ElizabethFdaughterSb April 1869age 42Salesladywholesale ---? goods McCutcheon MargaretFdaughterSb Nov 1869age 41none McCutcheon SamuelMsonSb Dec 1870age 40C---?store McCutcheon WilliamM sonSb Aug 1876age 34agent- All were born in Ireland, all immigrated in 1866, All were Irish, Canadian and Presbyterian Residence:95 HaydenSt
Note: Minnie may be Mary Agness, in which case she would have been born c. Nov 1865, rather than Nov 1843. If not, perhaps she was a relative other than a daughter.