sentences:  Following the reunion of the two Labor parties in February 1936, these were held by their members as ALP seats at the 1937 election.With the party's wins in Ballaarat and Gwydir (initially at a by-election on 8 March 1937), the ALP had a net gain of 11 seats compared with the previous election.This was the first federal election that future Prime Ministers Harold Holt and Arthur Fadden contested as members of parliament, having entered parliament at the 1935 Fawkner by-election and 1936 Darling Downs by-election respectively.