Final answer:
The person in question won Wimbledon in 1975, the US Open in 1968, the French Open in 1970, and the Australian Open in 1983.
Step-by-step explanation:
The major tournaments won by the person in question are as follows:
- Wimbledon in 1975
- US Open in 1968
- French Open in 1970
- Australian Open in 1983