| Player | Relation |
|---|---|
| Henk Timman | Father |
| Kees Timman | Son |
| Season | Henk Timman | Kees Timman |
|---|---|---|
| 1958-59 | Financial Committee | |
| 1963-64 | Member council | |
| 1964-65 | Treasurer | |
| 1965-66 | Treasurer | |
| 1966-67 | Treasurer | |
| 1967-68 | Treasurer | |
| 1968-69 | Treasurer | |
| 1969-70 | Treasurer | |
| 1970-71 | Treasurer | |
| 1971-72 | Treasurer | |
| 1972-73 | Treasurer | |
| 1973-74 | Treasurer | |
| 1974-75 | Treasurer | |
| 1975-76 | Treasurer | |
| 1976-77 | Treasurer |