| Full name: | William Singer MacMillan |
| Born: | 2nd October 1884, Moffat, Dumfriesshire, Scotland |
| Died: | 3rd July 1970, Moffat, Dumfriesshire, Scotland |
| Education: | Merchiston Castle School |
| Occupation: | Army in India |
| Other Sports: | Rugby |
| Teams: | Merchiston Castle School (Miscellaneous: 1903) |
| Lists of matches and more detailed statistics | |