William R. Lederman was a noted constitutional scholar and the first dean of Queen's Faculty of Law.
He was born in Regina and educated at the University of Saskatchewan and then at Oxford, where he was a Rhodes Scholar and a Vinerian Scholar.
Lederman made a name for himself as one of Canada's leading constitutional lawyers while teaching at Dalhousie University (1949-1958).
He was invited to be the first Dean of Queen's new Faculty of Law in 1958 and served in the post until 1968, but continued to teach in the faculty until the 1980s.
Lederman was constitutional adviser to then-Ontario Premier John Robarts between 1965 and 1971, and was a mentor to many other constitutional scholars in Canada.
The law library within Sir John A. Macdonald Hall is named in his honour.