 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Charles "Abe"•Jonker | 
| Used name | Abe•Jonker | 
| Born | 13 December 1933 in Port Elizabeth, Eastern Cape (RSA) | 
| Died | 31 July 1991 in Kempton Park, Gauteng (RSA) | 
| Measurements | 183 cm / 72 kg | 
| NOC |  South Africa | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1956 Summer Olympics | Cycling Road (Cycling) |  RSA | Abe Jonker | |||
| Road Race, Individual, Men (Olympic) | ||||||
| Road Race, Team, Men (Olympic) | South Africa | |||||
| Cycling Track (Cycling) |  RSA | Abe Jonker | ||||
| Team Pursuit, 4,000 metres, Men (Olympic) | South Africa | 4 | ||||
| 1960 Summer Olympics | Cycling Track (Cycling) |  RSA | Abe Jonker | |||
| Team Pursuit, 4,000 metres, Men (Olympic) | South Africa | 2 h4 r1/4 |