In November 1946, following the death of the President of the Legislative Council, James Cornell, Seddon was elected in his place.[3] He was knighted for his service in June 1951.[4] He served as president until the 1954 election, when he was defeated by Labor's John Teahan (in one of a series of Labor victories). Seddon lived in Kalgoorlie in retirement, dying there in February 1958, aged 76. He had married Winifred Jean Dunstan in 1932, with whom he had two sons and two daughters.[1]
^ abcHarold Seddon – Biographical Register of Members of the Parliament of Western Australia. Retrieved 24 May 2016.
^Black, David; Prescott, Valerie (1997). Election statistics: Legislative Assembly of Western Australia, 1890-1996. Perth, [W.A.]: Western Australian Parliamentary History Project and Western Australian Electoral Commission. ISBN0730984095.