| KNVB beker 1966/1967 - Appearances as Referee |  |
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| 02/04/1967 | Willem II | - | USV Elinkwijk | 3:4 pso | - | - | - |
| KNVB beker 1966/1967 - Appearances as Referee | |
|
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| 02/04/1967 | Willem II | - | USV Elinkwijk | 3:4 pso | - | - | - |
| Complete name: | Gerard Klaassens |
| Born: | 07/02/1931 |
| Place of birth: |
Netherlands |
| Residence: | Venlo |
| Nationality: |
Netherlands |