These listings are to help with time lines. They include  'Ernest Cousins', 'Imperial Ice Cream Co. Ltd.' . Both  listings are drawn from the Bell Canada's Main and  Business Directories.

Ernest Cousins:

 Main 4080    September 1902 - 90 St Chas Borr

 Main 4080    January 1903 -  90 St Chas Borr

 Main 4080    January 1904  - 90 St Chas Borr

Main 4080     July 1904 -   90 St Chas Borr

Main 4080     July 1905 - 90 St Chas Borr

Main 4080     January 1906 - 90 St Chas Borr

East 4080      July 1907  - Zouave House - Montee du Zouave

East 4080      July 1908 - Zouave House - Montee du Zouave

East 4080      July 1909 - Zouave House - Montee du Zouave 

East 4080      July 1909 - Zouave Dairy - 31 Montee du Zouave

East 4080      January 1910 -  Zouave Dairy - 31 Montee du Zouave 

East 4080      July 1910 -  Zouave Dairy - 31 Montee du Zouave  

East 4080      January 1911 - Zouave Dairy - 31 Montee du Zouave 

East 4080      July 1911 -  Zouave Dairy - 31 Montee du Zouave  

East 4080      July 1913 -  Zouave Dairy - 31 Montee du Zouave 

Ernest Cousins Limited
Lancaster 7245   1926 to 1928  - 18 Montee du Zouave 

York 8300            1928 1929  -  175 Colborne

Amherst 2071      1936 to 1937   -  4339 Adam Street  

Wilbank 1104          1929 1934     -  175 Colborne

Wilbank 1104          1935 1937    Blue Crest Milk Brand advertising -  175 Colborne

Plateau 3991           1937 1950 - 175 Colborne

University 2641        1950 - 175 Colborne

University 6-2641    1951 1956 - 175 Colborne                   

UN-6-2641                1957 1958 - 175 Windsor                    

UN-6-2641                 1959 1961  advertising  Since 1889 - 3115 Cote de Liesse

747-3501                    1962 -  141 Laurier W.

Crescent 2625          1931 - 5049 Des Carriere               

Belair 5598               1932 1933 - 5049 Des Carriere               

Belair 2873               1934 1936 - 5049 Berri

Belair 2873              1937 1952 - 4516 Breboeuf

Cherrier 7636           1935 - 4850 Henri Julien

Lancaster 3897         1941 1950 - 3950 St Urbain

Lancaster 3897         1951 1952 - 5505 Papineau                 

Cherrier 7636             1935 1941

  
The Imperial Ice Cream Co. Ltd:

East 4101, East 5291  July 1907 -  Imperial Ice Cream Co. Ltd - 25 Montee du Zouave

East 4101, East 5291  July 1908 - Imperial Ice Cream Co. Ltd - 25 Montee du Zouave

East 4101, East 5291 January 1909 -  Imperial Ice Cream Co. Ltd - 25 Montee du Zouave

East 4101 (office), East 5291(Order Department)   July 1909 -   Imperial Ice Cream Co. Ltd - 31 Montee du Zouave