Several of the directory entries indicate that home and business address was the same for these laundry operators.
The resource that I am using is online with Ancestry but the indexing is so bad that most entries do not show up in a people search. To access the directories, I searched the card catalog for “Canada, City and Area Directories, 1819-1906” and used the browse function. There are three sections: a street listing by address, an alphabetical listing of people and a business listing.
1875
No Sam Ching, Ah Lung or Sam Kee in alphabetical directory. There were three laundries in the relevant areas but nom run by people with Chinese names.
1877
No Sam Ching, Ah Lung or Sam Kee in alphabetical directory. Two laundries in the relevant sections of Adelaide and Queen St in street and business directories, but none run by people with a Chinese name.
1878
No Sam Ching, Ah Lung or Sam Kee in alphabetical directory. In the street and business directories we find Sam Ching and Co. laundry at 9 Adelaide E.
1879
No Sam Ching, Ah Lung or Sam Kee in alphabetical directory. The Sam Ching laundry on Adelaide E. is listed in the street directory but not business directory.
1880
No Sam Ching or Sam Kee in alphabetical directory. The Sam Ching laundry at 15 Adelaide E. is listed in the street and business directories.
1881
No Sam Ching or Sam Kee in alphabetical directory. The Sam Ching and Co. laundry at 15 Adelaide E. and the Sam Kee laundry at 18 Queen St. E. are listed in street and business directories.
1882
No Sam Ching or Sam Wing in alphabetical directory but Sam Kee of 18 Queen St. is listed. The laundry proprietor at 9 Adelaide E. is now listed as Sam Wing. Sam Ching’s 1881 address 15 Adelaide E. now a tea company. The Sam Kee laundry 18 Queen St. E is in the street directory but not business directory.
1884
We find the Sam Wing laundry at 9 ½ Adelaide E and Sam Kee laundry 18 Queen E. listed in street directory but not in the alphabetical or business directories.
1885
Alphabetical directory has no Sam Ching but has Sam Kee home and laundry at 18 Queen E. and Sam Wing laundry at 9 ½ Adelaide E. Both are found in the other directories.
1886
Both the Sam Wing laundry 9 Adelaide E. and Sam Kee laundry at 18 Queen E are in the street directory.
1887
The street directory now has Wan Lee operating the laundry at 9 ½ Adelaide E. Sam Wing is listed as operating a laundry at 39 ½ Queen St. W
1888
The business directory has the Sam Wing laundry at 39 ½ Queen W. and Sam Kee laundry at 18 Queen St. E. The 9 ½ Adelaide address is now real estate office
1889
The alphabetical directory lists Sam Wing home and laundry at 39 ½ Queen St. W.
1890
We still have Sam Wing laundry at 37 ½ Queen St W and Sam Kee laundry at 18 Queen St. E.
1891
The 37 ½ Queen St W address is listed as vacant in street directory but the address of Sam Wing laundry in business directory and alphabetical directory. Sam Kee still listed at 18 Queen St. E.
1892
Sam Wing no longer listed. Sam Kee also not listed. The 18 Queen St E address is listed as vacant but there is now a laundry at 16 Queen St E run by Lee Ying.
1893
Sam Kee now listed at 16 Queen St. E. 37 ½ Queen St. W is now listed as Qoim Lung laundry. No Sam Wing.
So, to summarize, Sam Ching disappears from these listings in the 1882 directory and he is replaced at his business address by Sam Wing who later moves to Queen St. W. until he disappears in 1891.
