Witty was a member of the Legislative Council from 1925 to 28 October 1932. Witty and Leonard Isitt were both appointed to the Legislative Council by Gordon Coates on 28 October 1925; shortly before the 1925 election on 4 November. Both were Liberals but their retirement removed "a source of some bitterness from the Party’s ranks (Coates rewarded them with seats in the Legislative Council the day after the election)". Gordon Coates was Reform, and both of their former seats went to Reform candidates.[5]
^The New Zealand Roll of Honour: New Zealanders who have served their country in Peace and War 1845-1995 (Edited by Alister Taylor, p.1165, 1998, Roll of Honour Publications, Auckland)
Bassett, Michael (1982), Three Party Politics in New Zealand, 1911-1931, Auckland: Historical Publications
Wilson, James Oakley (1985) [First published in 1913]. New Zealand Parliamentary Record, 1840–1984 (4th ed.). Wellington: V.R. Ward, Govt. Printer. OCLC154283103.
Wood, G. Anthony, ed. (1996). Ministers and Members: In the New Zealand Parliament. Dunedin: Otago University Press.