William O'Brien (American football)
William Edward O'Brien (March 11, 1923 – December 1, 2000) was an American football coach and official. He was the seventh head football coach at the Southern Illinois University Carbondale, serving for three seasons, from 1952 to 1954, and compiling a record of 6–20. O'Brien was an official in the National Football League (NFL) for 18 seasons, from 1967 through 1983, officiating in Super Bowl X in 1976. He wore number 83 for the major part of his NFL career. He was also a professor at Southern Illinois University.
Neil O'Brien (quizmaster)
Neil O'Brien (10 May 1934 – 24 June 2016) was a quiz master who was often credited for conducting the first formal well-organised quiz in Calcutta, India. He was also a chairman of CISCE. Brien served as a member of the West Bengal Legislative Assembly from 1977 to 1991 and became a nominated Anglo-Indian Lok Sabha MP in 1996. He died on 24 June 2016 at the age of 82. He is survived by his sons Barry 'O' Brien, Andy O'Brien, and Derek 'O' Brien and wife Joyce 'O' Brien.