About John O'Leary
Lived 1894 – 1959 (aged 64). John O'Leary was an Irish politician.
John O'Leary (1 September 1894 – 21 June 1959) was an Irish Labour Party politician who served in the Oireachtas for nearly twenty years, first as Teachta Dála (TD) for Wexford and then as a Senator.
He was elected to Dáil Éireann as a Labour Party TD for the Wexford constituency at the 1943 general election. He was re-elected at the 1944 and 1948 general elections as a National Labour Party TD. At the 1951 and 1954 general elections, he was once again elected as a Labour Party TD.
O'Leary was defeated at the 1957 general election, but was elected to the 9th Seanad by the Administrative Panel. He died in office in 1959, and John J. Brennan of Fianna Fáil was elected at a by-election to replace him.
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
Instant download · yours to keep · every purchase keeps this site free
Important facts
People in John O'Leary's life
Named in this biography and alive at the same time
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped John O'Leary's
Frequently asked questions
Who was John O'Leary?
Irish politician
When was John O'Leary born?
John O'Leary was born on 1 September 1894 in County Wexford.
When did John O'Leary die?
John O'Leary died on 21 June 1959.
What was John O'Leary's occupation?
John O'Leary was a politician.
What nationality was John O'Leary?
John O'Leary was Irish.
Sources & further reading
· DBpedia: John O'Leary (Wexford politician)
Cite this page
APA: Biography.guide. (2026). John O'Leary. https://biography.guide/john-o-leary-politician-1894/
MLA: "John O'Leary." Biography.guide, https://biography.guide/john-o-leary-politician-1894/.
Chicago: "John O'Leary." Biography.guide. https://biography.guide/john-o-leary-politician-1894/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 05:02 UTC