Francis O’Neill (Irish: Proinsias Ó Néill), an Irish-born American police officer and collector of Irish traditional music, is honoured in his native West Cork on March 11, 2000, where Garda Commissioner Patrick Byrne unveils a life-size monument of O’Neill playing a flute adjacent to the O’Neill family homestead in Trawlebane, County Cork. The monument, made by sculptor Jeanne Rynhart, and a commemorative wall are erected through the efforts of the Captain Francis O’Neill Memorial Company.

O’Neill is born in Trawlebane, near Bantry, County Cork, on August 28, 1848. At an early age he hears the music of local musicians, among them Peter Hagarty, Cormac Murphy and Timothy Dowling. At the age of 16, he becomes a cabin boy on an English merchant ship and remains a seaman until 1869. On a voyage to New York City, he meets Anna Rogers, a young emigrant whom he later marries in Bloomington, Illinois. They move to Chicago, and he becomes a Chicago policeman in 1873. He rises through the ranks quickly, eventually succeeding Joseph Kipley as the Chief of Police from 1901 to 1905. He has the rare distinction, in a time when political “pull” counts for more than competence, of being re-appointed three times to the position by two different mayors.

O’Neill is a flautist, fiddler and piper and is part of the vibrant Irish community in Chicago at the time. During his time as chief, he recruits many traditional Irish musicians into the police force, including Patrick O’Mahony, James O’Neill, Bernard Delaney, John McFadden and James Early. He also collects tunes from some of the major performers of the time including Patsy Touhey, who regularly sends him wax cylinders and visits him in Chicago. He also collects tunes from a wide variety of printed sources.

O’Neill retires from the police force in 1905. After that, he devotes much of his energy to publishing the music he has collected. His musical works include:

• O’Neill’s Music of Ireland (1903), containing 1,850 pieces of music.
• The Dance Music of Ireland (1907), sometimes called, “O’Neill’s 1001,” because of the number of tunes included.
• 400 tunes arranged for piano and violin (1915).
• Waifs and Strays of Gaelic Melody (1922), 365 pieces.
• Irish Folk Music: A Fascinating Hobby (1910). Appendix A contains O’Farrells Treatise and Instructions on the Irish Pipes, published 1797-1800; appendix B is Hints to Amateur Pipers by Patrick J. Touhy.
• Irish Minstrels and Musicians (1913), biographies of musicians, including those from whom he collected tunes in Chicago.

O’Neill dies of heart failure at his home in Chicago at the age of 87 on January 26, 1936. He is buried at Mount Olivet Cemetery.

In 2008, Northwestern University Press issues Chief O’Neill’s Sketchy Recollections of an Eventful Life in Chicago, a non-musical memoir edited by Ellen Skerrett and Mary Lesch, a descendant of O’Neill, with a foreword by Nicholas Carolan of the Irish Traditional Music Archive. Carolan himself writes a musical biography of O’Neill, A Harvest Saved: Francis O’Neill and Irish Music in Chicago, which is published in Ireland by Ossian in 1997. An historical biography of O’Neill, The Beat Cop: Chicago’s Chief O’Neill and the Creation of Irish Music, by Michael O’Malley, is published by the University of Chicago Press in 2022.

Chief O’Neill’s life is memorialized in the musical play Music Mad: How Chief O’Neill Saved the Soul of Ireland, which premieres in Chicago in 2012. Written by Adam B. Whiteman with the approval and acceptance of Francis O’Neill’s great-granddaughter, Mary Lesch, the show contains both dramatized content and material from O’Neill’s own writings.

Peter Hagarty and Francis O’Neill are memorialized in the song, Píobaire Bán, written by Tim O’Riordan. It is recorded by Patrick O’Sullivan on the CD One More Time and on O’Riordan’s own CD Taibhse.

In August 2013, the inaugural Chief O’Neill Traditional Music Festival takes place in Bantry, County Cork, just a few miles from Trawlebane. The 2013 event marks the centenary of the publication of O’Neill’s Irish Minstrels and Musicians. The event has taken place annually since.

Chief O’Neill’s Pub and Restaurant in Chicago’s Avondale neighborhood bears his name and displays related memorabilia.

O’Neill’s biographer, Nicholas Carolan, refers to him as “the greatest individual influence on the evolution of Irish traditional dance music in the twentieth century.”