[1] The average number of enrolled voters per electorate was 2,764, ranging from Wentworth (1,706) to Willoughby (4,854).
Kenneth Mackay (Progressive) had been elected in 1898, however, he was appointed to the Legislative Council and Niels Nielsen (Labour) won the seat at the by-election.
Sir William Lyne (Progressive) resigned prior to the federal election in March 1901 at which he successfully contested the seat of Hume.
Having resigned earlier than other candidates, a by-election was held in April 1901 in which Gordon McLaurin retained the seat for the Progressive Party.
Richard Stevenson (Protectionist) died in 1899 and John Norton (Independent) won the seat in a by-election.
William Ferguson had been elected in 1898 as a Labour representative, however he was denied endorsement due to his independent behaviour in the Assembly.
The sitting member Sir Matthew Harris (Liberal Reform) did not contest the election.