| Full name: | James Knox Sinclair |
| Born: | 1910 |
| Died: | 1987 |
| Education: | Loretto School |
| Occupation: | Area Manager for Imperial Airways, Scandinavia, then Public Relations Officer for Bewery |
| Teams: | Loretto School (Miscellaneous: 1928) |
| Lists of matches and more detailed statistics | |