Born 5 October 1912 in Fort William, Ontario (now Thunder Bay), the son of Max Laskin and Bluma Zingel, Russian Jewish immigrants (SCC bio, Wikipedia).
Attended Fort William Collegiate Institute; admitted to the University of Toronto law program directly into second year at age 17 on the strength of exceptional marks (Lakehead University).
University of Toronto: B.A. (1933), M.A. (1935), LL.B. (1936) (SCC bio). Some sources place the law degree at Osgoode Hall Law School (1936), reflecting the dual U of T / Osgoode legal-training requirement of the era (Wikipedia).