Margaret Duncan swim in 1930
| Swimmer | |
| Name | Duncan, Margaret |
| Gender | F |
| Age | 25 |
| Nationality | South Africa |
| Country | South Africa |
| Swim | |
| Year | 1930 |
| No of Ways, Leg, Direction | 1-way, 1st, F-E |
| Swim Time, Departure, Arrival | 16:17:00, , |
| Ratifying Organisation | CSA |
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