Dianella was created as a new seat further south from its original incarnation for the 1989 state election, with Wilson successfully transferring to the seat, serving also as Minister for Health under Premiers Peter Dowding and Carmen Lawrence.
David Parker, member for Fremantle from 1980 to 1990, served as Deputy Premier of Western Australia under Premier Peter Dowding from 1988 to 1990.
The Labor government, led by Premier Peter Dowding, won a third term in office against the Liberal Party, led by Opposition Leader Barry MacKinnon.
Peter Pan | Peter Gabriel | Peter Jackson | Peter | Saint Peter | Peter Paul Rubens | Peter Sellers | Peter the Great | Blue Peter | Peter Frampton | Peter Greenaway | Peter Brook | Peter Lorre | Peter Ustinov | St. Peter's Basilica | Peter Kropotkin | St. Peter | Peter Fonda | Peter Kay | Peter David | Peter Mandelson | Peter O'Toole | Peter Allen | Lord Peter Wimsey | Peter Sellars | Peter Schreier | Peter, Paul and Mary | Peter Davison | Peter Singer | Peter Maxwell Davies |
Of the former Dowding ministry, 15 of the 17 ministers retained office—Peter Dowding and Julian Grill were not reappointed, and backbenchers Pam Buchanan (Ashburton) and Dr Geoff Gallop (Victoria Park) took their place.