Surname Update : Haas, Jannis

Jannis Haas adopted daughter of Catherine Geddes or Feddes
On the 1911 Canada Census page 8, Province of Ontario, District 74 South Grey, Egremont Township line 5 Geddes, (Gedder or Feddes, Fedder) Catherine Female, Head,  b. January 1864, 67 yrs old born O (which I take as Ontario) is Head and on line 8 Haas Jannis Female, Adopted Daughter, b. February 1910 1 yr old, born O.

I am trying to find more information about Jannis Haas. Who here parents were, where they were from, if they died and that's why she was adopted. This Catherine also has 2 other adopted daughters listed on the census.

Jannis Haas (Who does she belong to?)  I found her on the following Census:

1911 Fifth Census of Canada in the Province of Ontario, District No. 74 South Grey, S. District No. 2 Enumeration District No. 3, in Egremont Township Page 8

Line  Dwelling Family Name                         Gender  Relation Marital Birth Month Yr Age Birthplace  5           85          87      Gedde(s, r) Cathrine   F          Head              ?     January  1886   47      O                                      or  Fedde(s,r)  
6                                   Ellis Charlote           F        adopted daughter S   April      1885   26       O  7                                   Fedde(s,r) Rolina     F        adopted daughter S   March    1899   12       O      8                                   Haas Jannis              F        adopted daughter S   Feburey 1910     1       O

Down a few lines on the same census there are some more Haas' and another Ellis 

14         87         89       Haas Edwin              M       Head                    M  March    1868   43      O  15                                 Haas Rachel             F         Wife                    M  April      1876   37      O  16                                 Haas Edna                F         Daughter             S   July        1900   10      O  17                                 Haas Alexander       M        Son                      S   May       1902     9      O  18                                 Haas Isabell             F         Daughter              S  June        1909     1      O  19                                 Haas Allan               M       Son                       S  Febuary   1911   7/12  O  20                                 Haas William           M       Brother                W October    1878   32     O  21                                 Haas Addie              F         Niece                   S  October    1905     5     O  22                                 Haas Reobina          F         Niece                   S  December 1907     3     O  23                                 Haas Adline            F          Sister                   S  October     1865   25    O  24                                 Ellis Jane                F          Head                   W December  1854  56     O   

Is it possible that Jannis could be the daughter of William since he has 2 young daughters or of Adline who is single?