[4][5] According to The Reminiscences of a Light Dragoon published in 1840, Brennan was hanged at Caher as witnessed by the author.
The reminiscences describe some of Brennan's exploits, his character, his partner-in-crime and ultimately his capture, trial and hanging.
[6] The earliest version of the ballad dates to the middle 19th century, either the 1830s [3] or to 1859, and various versions of the song were extant in Ireland, Great Britain, Canada and the United States in the 19th century.
It has been recorded by Burl Ives, The Clancy Brothers and Tommy Makem, Philip James, Neil Morris, and The Marshmen.
It was not included on that album, but was finally released in 1991 on The Bootleg Series Volumes 1–3.