John J. O'Brien (civil servant)

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John J. O'Brien
In office
November 29, 1963 – September 29, 1964
Personal details
Born John Joseph O'Brien
(1919-09-11)September 11, 1919
Somerville, Massachusetts
Died October 14, 2001(2001-10-14) (aged 82)
Johnston, Rhode Island
Political party Democratic
Spouse(s) Eleanor O'Brien
Children John J. O'Brien Jr.
Julie Tamuleviz
Joanne O'Brien
Jennifer O'Brien
Occupation Internal Revenue Service investigator
Religion Roman Catholic
Military service
Allegiance United States of America
Service/branch United States Coast Guard
Years of service 1942-1946
Unit Bayfield-class attack transport
Battles/wars World War II

John Joseph O'Brien (September 11, 1919 – October 16, 2001) was an American civil servant who investigated the assassination of President John F. Kennedy. Born in Somerville, Massachusetts, O'Brien received his B.B.A. degree in law and business, cum laude, from Northeastern University, Boston. He received his M.A. degree in the field of governmental administration from George Washington University, Washington, D.C., and in 1941 joined the Bureau of Internal Revenue.[1] After service in the U.S. Coast Guard, O'Brien resumed his work as an Internal Revenue Service investigator. O'Brien was appointed as a staff member for the Warren Commission in 1963. Their purpose was to investigate the assassination of President Kennedy. After completion of the Warren Commission, he took the post of Assistant Chief of the Inspection Services Investigations Branch, in the National Office of Internal Revenue.[1][2]

Final report cover


  1. ^ a b "Appendix 4". Retrieved 2011-03-14. 
  2. ^ "Title Page and Letter". Retrieved 2011-03-14.