According to his obituary my great uncle Wilfred Tait was well known throughout Eastern Canada in the electrical engineering and supply trade. He was an electrical draughtsman when he joined the Navy in WWI. He later worked for the electrical engineering department of the Steel Company of Canada, then went on to work for Square D Electric.
This photo was taken at the 32nd Canadian Electrical Association Conference in Ottawa at the Chateau Laurier in June 1922. I think my great uncle was too new to the trade to be in this photo.
Electrical trade periodicals usually have a personal section (appointments, retirees, obituaries, etc) and a section on new patents. May be called news or notices (contracts, bankruptcies, new companies, etc). Check the contents at the beginning of each number. There could be more than one number in a book.
Canadian Electrical News and Engineering
The Electrician NY 1882-1883
The Electrician UK, Vol 57 1906
The Western Electrician, Chicago
The Southern Electrician NC 1911
Great Electricians 1909
The Electrical Review, UK
Journal of Electricity, Power and Gas (Pacific Coast Electric Transmission Assn)
IEEE membership directory (Institute of Electrical and Electronics Engineers) 1914
The Post Office elecrical engineers' journal (many names in back- Britain, India, Africa, Uganda) 1908-1922
J A Berly's British, American and continental electrical directory and advertiser
The Universal electrical directory
McGraw electrical trade directory
Tait's electrical directory of Australia and New Zealand (in library only)
American electrical directory 1888
The Electrician, electrical trades directory and handbook 1889-1917
The Electrical Trade Chicago 1895-1918
Proceedings, annual meeting - Canadian Electrical Association
Proceedings, annual meeting - Minnesota Electrical Association 1909
Proceedings of the Electrical Institute of Engineers