Question: Which professional tennis player is older, Françoise Dürr or Ryan Harrison?

Context articles: 1970 Wimbledon Championships – Women's Doubles
Ryan Harrison (tennis)
1969 Suisse Open Gstaad
1967 French Championships – Women's Singles
Kim Warwick
Françoise Dürr
1968 Wimbledon Championships – Women's Doubles
1971 Rothmans Canadian Open
1971 Virginia Slims Clay Court Championships
Sandrine Testud

The Women's Doubles tennis competition was one of the events of the 1970 Wimbledon Championships which was played on outdoor grass courts at the AELTC in Wimbledon, London and held from 22 June to 4 July.
 Second-seeded Rosie Casals and Billie Jean King won in the final 6–2, 6–3 against the fourth-seeded team of Françoise Dürr and Virginia Wade.
Ryan Harrison (born May 7, 1992) is an American professional tennis player.
 Harrison has won one career ATP title, his lone victory so far coming at the 2017 Memphis Open.
 He is currently the 5th-highest ranked U.S.men's singles player.
The 1969 Suisse Open Gstaad was a combined men's and women's professional tennis tournament played on outdoor clay courts in Gstaad, Switzerland.
 It was the 24thd edition of the tournament, the second in the Open Era, and was held from 22 July through 27 July 1969.
 Roy Emerson and Françoise Dürr won the singles titles.
Françoise Dürr defeated Lesley Turner 4–6, 6–3, 6–4 in the final to win the Women's Singles tennis title at the 1967 French Championships.
Kim Warwick (born 8 April 1952) is an Australian former professional male tennis player who competed on the ATP Tour from 1970–1987 reaching the final of the singles Australian Open in 1980.
 He defeated over 35 players ranked in the top 10 including Guillermo Vilas, Raul Ramerez, Vitas Gerulaitis, Jan Kodeš, Bob Lutz and Arthur Ashe.
 Warwick's career-high singles ranking was World No. 15, achieved in 1981.
 He won three singles titles and 26 doubles, including Australian Open 1978 (with Wojtek Fibak) and Australian Open 1980 and 1981, Roland Garros 1986 and also a runner-up in Australian Open 1985, all of them partnering fellow countryman Mark Edmondson.
 Partnering with Evonne Goolagong, he won the French Open 1972, defeating Françoise Dürr and Jean-Claude Barclay in the final 6–2, 6–4.
 Evonne and Kim were finalists in 1972 at Wimbledon against Rosie Casals and Ilie Năstase who won 6–4, 6–4.
Françoise Dürr (born 25 December 1942; sometimes referred to by English writers as Frankie Durr) is a retired French professional tennis player.
 She won 26 major singles titles and over 60 doubles titles.
Rosemary Casals and Billie Jean King successfully defended their title, defeating Françoise Dürr and Ann Jones in the final, 3–6, 6–4, 7–5 to win the Ladies' Doubles tennis title at the 1968 Wimbledon Championships.
The 1971 Rothmans Canadian Open was a tennis tournament played on outdoor clay courts at the Toronto Lawn Tennis Club in Toronto in Canada that was part of the 1971 World Championship Tennis circuit.
 The tournament was held from August 9 through August 16, 1971.
 John Newcombe and Françoise Dürr won the singles titles.
The Virginia Slims Clay Court Championships, also known as the Virginia Slims of Chicago, was a women's tennis tournament played on outdoor clay courts at the Lake Bluff Bath & Tennis Club in Chicago, Illinois in the United States that was part of the 1971 WT Pro Tour.
 It was the inaugural edition of the tournament and was held from August 19 through August 22, 1971.
 Third-seeded Françoise Dürr won the singles title and earned $4,100 first-prize money.
Testud broke into top 20 singles rankings in July 1997.
 On February 7, 2000, she became the sixth Frenchwoman after Françoise Dürr, Mary Pierce, Nathalie Tauziat, Amélie Mauresmo and Julie Halard to break into the singles top 10 rankings.
 This marked the first time France had four women ranked in the singles Top 10 simultaneously (Mary Pierce at No. 5, Nathalie Tauziat at No. 6, Julie Halard at no.8 and Testud at No. 9).
 France was the third nation after the USA and Australia to have more than two representatives in the singles Top 10 at any one time.
 She finished in the top 20 singles rankings for five consecutive years between 1997 and 2001.
 In the summer of 2002, she took a break from the tennis circuit when she discovered that she was pregnant with her first child.
 She resumed her career 12 months after the birth of her child and retired in the summer of 2005.