Thomas Francis O'Brien Jr.
American physician, epidemiologist
- Sex or Gender:
- male
- Date of Birth:
- 1929-01-28
- Place of Birth:
- Worcester
- Country of citizenship:
- United States of America
- Father:
- Thomas Francis O'Brien, Sr.
- Mother:
- Esther M. O'Brien
- Childrens:
- Conan O'Brien
