|The Honourable Sir
|8th Minister of Agriculture|
4 September 1919 – 21 January 1926
|Prime Minister||Massey, Bell, Coates|
|Preceded by||William MacDonald|
|Succeeded by||Oswald Hawken|
|23rd Minister of Finance|
14 May 1925 – 24 May 1926
|Prime Minister||Bell, Coates|
|Preceded by||William Massey|
|Succeeded by||William Downie Stewart|
|4th Minister of Foreign Affairs|
24 May 1926 – 24 August 1928
|Prime Minister||Gordon Coates|
|Preceded by||Francis Bell|
|Succeeded by||Gordon Coates|
|Member of the New Zealand Parliament
|Preceded by||John McLachlan|
|Succeeded by||electorate abolished|
|Parliament of New Zealand|
|1909–1911||Changed allegiance to:||Reform|
Nosworthy stood in the Ashburton electorate in the 1908 election. The Second Ballot Act was in force and on election night, he was in third place behind David Jones. Nosworthy encouraged his supporters to vote for Jones in the second ballot. After a recount, the situation was reversed (Nosworthy was 30 votes ahead) and Jones advertised for his supporters to vote for Nosworthy, and indeed, Nosworthy was successful in the second ballot.
He was first appointed to Cabinet in 1919, being appointed Minister of Agriculture (1919–1925) and then Minister of Immigration (1920–1925) by William Massey. When Massey died in 1925, Nosworthy gained the more important role of Minister of Finance in the interim government of Francis Bell.
Nosworthy contested the leadership race to succeed Massey, but was defeated by Gordon Coates. He continued to serve as Minister of Finance until the following year, when he was given the External Affairs portfolio instead (1926–1928). He held this position until his retirement from politics in 1928.
He was appointed a Knight Commander of the Order of St Michael and St George in 1929 and was awarded the King George V Silver Jubilee Medal in 1935.
- "The Ashburton Seat". The Press LXIV (13278). 20 November 1908. p. 6. Retrieved 23 November 2013.
- Wilson 1985, p. 223.
- Wilson 1985, p. 77.
- Wilson 1985, p. 78.
- Wilson 1985, p. 79.
- The London Gazette: . 1 March 1929. Retrieved 17 November 2013.
- "Official jubilee medals". The Evening Post CXIX (105). 6 May 1935. p. 4. Retrieved 17 November 2013.
- Wilson, James Oakley (1985) [First ed. published 1913]. New Zealand Parliamentary Record, 1840–1984 (4th ed.). Wellington: V.R. Ward, Govt. Printer. OCLC 154283103.
|New Zealand Parliament|
|Member of Parliament for Ashburton
Title next held byRichard Geoffrey Gerard