John O'Brien

From Kook Science

Father John O'Brien
Born John O'Brien
c. 1800
Ballina, County Tipperary, Ireland
Died 31 October 1874 (74) [1][2]
Lowell, Middlesex, Massachusetts
Burial St. Patrick's Church, Lowell, Mass.
Field(s) Priesthood (Catholic)

Fr. John O'Brien (c. 1800 - October 31, 1874) was a Catholic priest of Irish descent, known for his time in the Boston diocese, where he served as a parish priest at St. Patrick's Church in Lowell, Massachusetts from 1848 until his death in 1879, and acted as the inspiration (and trademark) for Father John's Medicine, a cod liver oil tonic.


  1. "Deaths of Clergymen: Obsequies of Rev. John O'Brien, Lowell, Mass.", Pilot (Boston) 37 (46), 14 November 1874, 
  2. "Fifty Fruitful Years: Rev. Michael O'Brien of Lowell Completes a Half Century of Priestly Labors.", Sacred Heart Review 21 (6), 4 February 1899,, "Full of good works, mourned by all, Protestants and Catholics alike, and leaving behind him imperishable monuments of his priestly fervor and pastoral work, Father John O'Brien passed to the eternal reward of his labors on the last day of October, 1874."