- 7589 - van Campen, H. - July 1964 (est)
- 7590 - Zeeman - July 1964 (est)
- 7591 - Lazeron - July 1964 (est)
- 7592 - Tensen? - July 1964 (est)
- 7593 - Labruijere - July 1964 (est)
- 7594 - RIH Bustraan - July 1964 (est)
- 7595 - Post, P - July 1964 (est) - Peter Post, pro 1956-1972; rode RIH/Radium-RIH team 1956/1957/1958/1959
