List of Grand Slam singles champions in Open Era with age of first title

Columns: Age | Name | Tournament | Date of birth | Date of first title ° | Notes
25 years , 290 days | Nancy Richey * | 1968 French Open | 23 August 1942 | 8 June 1968 | 23 years , 59 days | Virginia Wade | 1968 US Open | 10 July 1945 | 7 September 1968 | 1st of 3 | 24 years , 226 days | Billie Jean King * | 1968 Wimbledon | 22 November 1943 | 5 July 1968 | 1st of 8 | 26 years , 194 days | Margaret Court * | 1969 Australian Open | 16 July 1942 | 26 January 1969 | 1st of 11 | 19 years , 309 days | E. Goolagong Cawley | 1971 French Open | 31 July 1951 | 5 June 1971 | 1st of 7 | 19 years , 176 days | Chris Evert | 1974 French Open | 21 December 1954 | 15 June 1974 | 1st of 18 | 20 years , 55 days | Sue Barker | 1976 French Open | 19 April 1956 | 13 June 1976

Example questions:
Which women 's Grand Slam singles champion in Open Era won the tournament played from 20 June to 3 July 1994 ? | Which 23 year old women 's Grand Slam singles champion in Open Era is from Romania ? | Which tournament did the women 's Grand Slam singles champion in Open Era who is a gender equality advocate play ? | What is the birthplace of the women 's Grand Slam singles champion in Open Era who won the most recent Open ? | What is the age in years of the women 's Grand Slam singles champion in Open Era who married Kenneth S. Gunter ?

Answers:
Conchita Martínez | Virginia Ruzici | 1968 Wimbledon | Canada | 25