Duncan MacMillan (businessman)
| William Duncan MacMillan | |
|---|---|
| Nationality | American | 
| Alma mater | Rutgers University (BS) | 
| Occupation(s) | Mathematician; Businessman; Philanthropist | 
| Known for | co-founder of Bloomberg L.P. | 
| Spouse | Nancy MacMillan | 
| Children | two --Kevin MacMillan --Alissa MacMillan | 
Duncan MacMillan is an American mathematician, philanthropist, and businessman known for being one of the four founders of Bloomberg L.P. MacMillan is not to be confused with Whitney Duncan MacMillan, who inherited his billions in agribusiness.