Biography.guide
Home › People › Politician › James O'Brien
Portrait of James O'Brien

James O'Brien

1874 – 1947

New Zealand politician

Don't just read it — keep itBiographies to ownE-book · Audio · Video From $7 →

About James O'Brien

Lived 1874 – 1947 (aged 73). James O'Brien was a New Zealand politician.

Peter James O'Brien (8 June 1874 – 28 September 1947) was a New Zealand politician of the Labour Party.

Early life O'Brien was born in 1874 at Forest Creek, near Castlemaine, Victoria, Australia. His parents of Irish descent were Terence O’Brien, a miner, and Bridget O’Leary. He was christened Peter James, but his first name was never used; many knew him as Jim or Briney. After having worked as a miner in various Australian states, O'Brien emigrated to New Zealand in 1904 and found employment as a coalminer in Reefton. O'Brien became active in the socialist circles that developed on the West Coast. He became president of the Westland Certificated Engine-drivers' and Firemen's Union, and was the president of the Runanga Co-operative Society.

Political career

Standing on a socialist ticket, he was voted onto the inaugural Runanga Borough Council in 1912. In 1913, he supported Paddy Webb's successful by-election campaign in the electorate for the Social Democratic Party, and later became the president of the Runanga branch of the party.

He represented the Westland electorate in Parliament from the , when he defeated Tom Seddon. He lost the electorate in the to Tom Seddon, but won it back in , and held it to 1947, when he died. He was the senior Government whip from 1939 until his promotion to the cabinet in 1942.

He was a Minister in the First Labour Government. He was Minister of Transport (9 December 1942 – 28 September 1947), Minister of Marine (9 December 1942 – 28 September 1947), Minister of Labour (27 June 1946 – 19 December 1946) and Minister of Mines (27 June 1946 – 19 December 1946). He remained an MP until his death, which caused a by-election held in December 1947 that was won by Labour's Jim Kent.

In 1935, he was awarded the King George V Silver Jubilee Medal.

Family and death O'Brien married Kate Teresa Flaherty on 29 June 1909 in Greymouth. He died in Wellington on 28 September 1947. His wife survived him; they had no children.

Biography shop

Don’t just read it —
keep it.

Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.

  • E-book
  • Audio
  • Video
Browse the shop — from $7

Instant download · yours to keep · every purchase keeps this site free

Important facts

Birth century
Occupation
Nationality
Positions held
Member of the New Zealand Parliament
Also known as
Peter James O'Brien, Jim O'Brien, Brin

People in James O'Brien's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped James O'Brien's

Frequently asked questions

Who was James O'Brien?

New Zealand politician

When was James O'Brien born?

James O'Brien was born on 8 June 1874.

When did James O'Brien die?

James O'Brien died on 28 September 1947 in Wellington.

What was James O'Brien's occupation?

James O'Brien was a politician.

What nationality was James O'Brien?

James O'Brien was New Zealand.

Sources & further reading

· Wikipedia: James O'Brien

· Wikidata: Q6140445

· DBpedia: James O'Brien (New Zealand politician)

Cite this page

APA: Biography.guide. (2026). James O'Brien. https://biography.guide/james-o-brien-politician-1874/

MLA: "James O'Brien." Biography.guide, https://biography.guide/james-o-brien-politician-1874/.

Chicago: "James O'Brien." Biography.guide. https://biography.guide/james-o-brien-politician-1874/.

Data last updated: 2026-09-22 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

Page generated 2026-09-27 05:02 UTC