Parker ministry  The Parker ministry was the third ministry of the Colony of New South Wales, and was led by the Honourable Henry Parker. Parker was elected in the first free elections for the New South Wales Legislative Assembly held in March 1856 and, following the failure of the Donaldson and Cowper Governments to maintain the confidence of the Assembly, was asked to form Government. The title of Premier was widely used to refer to the Leader of Government, but not enshrined in formal use until 1920. There was no party system in New South Wales politics until 1887. Under the constitution, ministers were required to resign to recontest their seats in a by-election when appointed. These by-elections are only noted when the minister was defeated; in general, he was elected unopposed. This ministry covers the period from 3 October 1856 until on 7 September 1857, when Parker resigned his commission, having lost an electoral bill. During this period, there was a slight re-arrangement to the ministry, following the resignation of William Manning on account of ill-health.