↑(en) Daisy de Jong Webster, Growth of the N.D.P. in B.C., 1900–1970: 81 Political Biographies, New Democratic Party Headquarters, (lire en ligne)
↑(en) Elections British Columbia et British Columbia Legislative Library, Electoral History of British Columbia, 1871–1986, Elections British Columbia, (ISBN978-0-7718-8677-5, lire en ligne)