At the moment George is only presumed to be a child of Mendel and Taube.

From http://www.collectionscanada.gc.ca:
1891 Census
Family Name: Traghein
Given Name: Geo
Province: Quebec
District: Montréal Centre
Sub-district: St Louis Ward
Household Number: 55
Sex: Male
Age: 30
Marital Status:Married
Birth Year: 1861

http://www.nationalcigarmuseum.com/Canada/Canadian_Factories.html
Factory 5, District 17
Jas. Hoctor [1883-84]
    G. Tragheim [1889]
    F. Pagels [1890-94]
    A.G. Bloomfield [1897-98]
    A.J. Bloomfield [1899]
    Green, Fischel & Co. [1901-02]
    G.T. Tuckett [1903-04]
    The Tuckett Cigar Co. Ltd. [1906-15]
    The Tuckett Tobacco Co. Ltd. [1916-20]

Factory 8, District 17
L.M. Lesser [1883-85]
    G. Tragheim [1886-88]
    A. de Laet [1889-93]
    P.A. Pelletier & Co. [1895-1904]
    P.A. Pelletier [1905-20]

Factory 17, District 17
P. Jones [1883-94]
    Geo. Tragheim [1898-1900]
    Hart & Morris [1902-03]
    James Morris [1904]
    Poirier Bros. [1906-11]
    Poirier Bros. Ltd. [1912]
    Victor Prim [1914-20]

1886-88, Factory 8, District 17
1889, Factory 5, District 17
1895-95, 283 William St (alphabetical directory, as Traghim)
1896-97, 283 William St (alphabetical directory, as Traghein)
1899-1900 4 Taillefer Ave, (alphabetical directory, as Traghein, Geo., & Co.)
1898-1900, Factory 17, District 17
1900-1901, 4 Taillefer Ave, (alphabetical directory, as Traghein, Geo.)
1901-1902 31 Eleanor 4 (alphabetical directory, as Traghan, Geo.)

IN 1901 Census of Canada, Sainte-Anne (Ward/Quartier), MONTRÉAL (City/Cité), District 174, Subdistrict a-18, QUEBEC.

Living with Mary (Wife), children Ethel (”Eathel”), Annie, Mary, Edward, Theresa (”Tarieca”), and sister-in-law Bridget Sheridan (23 years old). DoB 1860, age 40.

In 1911 census, living at 134a Colborne Street in St Ann's Ward. Ethel and Mary no longer listed. Frank and Ellen added to the family. Country of origin given as Germany. Date of of naturalization marked with “x”. Total earnings for previous year given as “400”. Age given as 47, and year of birth as 1874 (this doesn’t add up -- with the birth year he would have been 37, and according to the birthdate on the 1891/1901 censuses -- 1861/60 -- he would have been 50/51).