| Full name: | John Arthur Campbell Knowles |
| Born: | 20th April 1926, Auckland, New Zealand |
| Batting: | Right-hand batter |
| Bowling: | Right-arm off-break |
| Relations: | Son: DJ Knowles |
| Teams: | Waikato (Hawke Cup: 1949/50-1953/54); Thames Valley (Hawke Cup: 1955/56-1973/74); All teams |
| Lists of matches and more detailed statistics | |