| KNVB beker 1970/1971 - Appearances as Referee |  |
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| 16/08/1970 | Willem II | - | PEC | 1:0 | - | - | - |
| 14/03/1971 | SC Cambuur | - | Feijenoord | 0:3 | - | - | - |
| KNVB beker 1970/1971 - Appearances as Referee | |
|
|
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| 16/08/1970 | Willem II | - | PEC | 1:0 | - | - | - |
| 14/03/1971 | SC Cambuur | - | Feijenoord | 0:3 | - | - | - |
| Complete name: | Henk Klopper |
| Born: | 20/10/1931 † 30/06/2012 |
| Place of birth: |
Voorburg, 
Netherlands |
| Nationality: |
Netherlands |