| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | John Allen•Sully | |
| Used name | John•Sully | |
| Born | 9 April 1920 in Bridgwater, England |  GBR |
| Died | 24 November 2010 (aged 90 years 7 months 15 days) in Johannesburg, Gauteng |  RSA |
| Affiliations | Royal Natal Yacht Club — Durban, KwaZulu-Natal | RSA |
| NOC | South Africa | RSA |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1956 Summer Olympics | Sailing | RSA |
John Sully | |||
| Two-Person Heavyweight Dinghy, Open (Olympic) | Alfred Evans | 5 |
