Successes For Miss J Williamson
| Season | Event |
| 1968/69 | Ladies' Doubles (partner Mrs Barbara Andrews ) |
| 1966/67 | Ladies' Doubles (partner Mrs Barbara Andrews ) |
| 1965/66 | Ladies' Singles |
| 1965/66 | Ladies' Doubles (partner Mrs Barbara Andrews ) |
| 1965/66 | Mixed Doubles (partner N Isbell ) |
| 1964/65 | Ladies' Doubles (partner Mrs Barbara Andrews ) |
| 1963/64 | Ladies' Doubles (partner Mrs Barbara Andrews ) |
| 1962/63 | Ladies' Singles |
| 1962/63 | Ladies' Doubles (partner Mrs Barbara Andrews ) |
| 1962/63 | Mixed Doubles (partner N Isbell ) |
| 1961/62 | Ladies' Doubles (partner Mrs Barbara Andrews ) |