| Full name: | John Gordon Williamson |
| Born: | 4th April 1936, Norton, Stockton-on-Tees, Co Durham, England |
| Died: | 25th January 2023 |
| Batting: | Right-hand batter |
| Bowling: | Right-arm fast-medium |
| Biography: | He changed his name to John Gordon Barkass-Williamson in 1965 |
| Relations: | Son: GJPB Williamson |
| Teams: | Northamptonshire (Main FC: 1959-1962); Durham (Main ListA: 1964-1968); Durham (Minor Counties Championship: 1954-1969); Cheshire (Minor Counties Championship: 1974); Northamptonshire Second XI (Minor Counties Championship: 1958-1959); All teams |
| Lists of matches and more detailed statistics | |
| First-Class Career Batting and Fielding (1958-1962) | ||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | Ct | ||
| Overall | 56 | 67 | 19 | 820 | 106* | 17.08 | 1 | 3 | 28 | |
| First-Class Career Bowling (1958-1962) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM | SRate | Econ | |
| Overall | 8918 | 340 | 3921 | 120 | 6-47 | 32.67 | 3 | 0 | 74.31 | 2.63 |
| List A Career Batting and Fielding (1964-1968) | ||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | Ct | ||
| Durham | 4 | 3 | 0 | 4 | 2 | 1.33 | 0 | 0 | 0 | |
| List A Career Bowling (1964-1968) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ | |
| Durham | 242 | 8 | 128 | 7 | 4-13 | 18.28 | 1 | 0 | 34.57 | 3.17 |
| Minor Counties Championship Career Batting and Fielding (1954-1974) | ||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | Ct | ||
| Overall | 63 | 86 | 10 | 1066 | 81 | 14.02 | 0 | 3 | 15 | |
| Minor Counties Championship Career Bowling (1954-1974) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM | SRate | Econ | |
| Overall | 7746 | 359 | 3396 | 158 | 7-62 | 21.49 | 6 | 0 | 49.02 | 2.63 |