About John O'Neill
Lived 1830 – 1914 (aged 83). John O'Neill was an American politician.
John O'Neill (October 18, 1829 – May 12, 1914) was a Canadian American immigrant, miner, farmer, and Democratic politician. He served two terms in the Wisconsin State Assembly, representing western Lafayette County.
Biography John O'Neill was born in Douglastown, in Miramichi, New Brunswick, in 1829. In 1845, he emigrated with his parents and siblings to Lafayette County, in the Wisconsin Territory, where they all engaged in lead mining. In 1846, the family acquired a tract of land in the town of Seymour from the federal land office.
In 1852, he crossed the country with an ox team to California, where he remained for several years. Upon his return to Wisconsin in 1859, he engaged in farming and livestock raising. He was subsequently re-elected in 1882. He did not run for a third term in 1884.
Personal life O'Neill never married and had no children. He retired from his farm in the 1890s and went to live in the care of his brother's family. His brother, Brien, preceded him in death, but his care continued under Brien's wife and children. For the last five years of his life he was completely blind. He suffered a stroke on the morning of Tuesday, May 12, 1914, and died that afternoon. His body was interred at Saint Matthews Catholic Cemetery in Shullsburg.
Electoral history Wisconsin Assembly (1881, 1882)
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'Neill's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped John O'Neill's
Frequently asked questions
Who was John O'Neill?
Wisconsin politician
When was John O'Neill born?
John O'Neill was born on 18 October 1830 in Douglastown.
When did John O'Neill die?
John O'Neill died on 12 May 1914 in Seymour, Lafayette County, Wisconsin.
What was John O'Neill's occupation?
John O'Neill was a politician.
What nationality was John O'Neill?
John O'Neill was American.
Sources & further reading
· DBpedia: John O'Neill (Wisconsin politician)
Cite this page
APA: Biography.guide. (2026). John O'Neill. https://biography.guide/john-o-neill-politician-1830/
MLA: "John O'Neill." Biography.guide, https://biography.guide/john-o-neill-politician-1830/.
Chicago: "John O'Neill." Biography.guide. https://biography.guide/john-o-neill-politician-1830/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 05:29 UTC