Resignation of premier (Champ): Beginning of Gregson's period in office: Champ 'resigned after a vital amendment to his finance bill was carried [the reduction of the Governor's salary]. Governor Young, probably with misgivings, commissioned the mover of the amendment, Thomas George Gregson, in the absence of an organised party system, to form a government', Reynolds, p. 116, (see 'References', below).
Defeat in parliament (Gregson): Gregson's government 'was defeated soon after it met the House by a motion of no-confidence proposed by the Anti-Transportation Leader, William Pritchett Weston', Reynolds p. 117, (see 'References', below). Both Green and Newman suggest that the motion prompting the no-confidence vote was one of censure; (see Green, and Newman, 'References', below).
References: For a description of the style of parliamentary government in this period, see John Reynolds, 'Premiers and Political Leaders', in F C Green (editor), Tasmania: A Century of Responsible Government 1856-1956, pp 115-192, (Hobart: L G Shea, Government Printer, ), and note Terry Newman, Tasmanian Premiers 1856-1988: A Biographical Handbook, (Hobart: Tasmanian Parliamentary Library, ).
For a survey of Gregson's career, see F C Green, 'Gregson, Thomas George (1798-1874)', Australian Dictionary of Biography, Volume 1, pp 475-476, (Melbourne: Melbourne University Press, 1966), on line at: http://www.adb.online.anu.edu.au/biogs/A010438b.htm.
'Ministries: Names of the Members of Successive Ministries which have held Office in Tasmania since the inauguration of Responsible Government, together with the Dates of Appointment and Retirement', Journal of House of Assembly, Second Session of the Forty-Fifth Parliament of Tasmania, Anno LIII and LV Eliz II; Session 2 of the 45th Parliament, Volume 251, 2004-2006, (Hobart: Government Printer, Tasmania).