| Roles | Competed in Olympic Games |
|---|---|
| Sex | Female |
| Full name | Mary Beatrice•Klass (-de Souza) |
| Used name | Mary•Klass |
| Born | 16 May 1935 in Singapore, Singapore (SGP) |
| Affiliations | Achilles Club, Singapore (SGP) |
| NOC | Singapore |
Personal Bests: 100 – 12.57 (1956); 200 – 26.37 (1956).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1956 Summer Olympics | Athletics | SGP |
Mary Klass | |||
| 100 metres, Women (Olympic) | 7 h2 r1/3 | |||||
| 200 metres, Women (Olympic) | 4 h1 r1/3 |