Kathy Jordan and Elizabeth Smylie were the defending champions, but Jordan did not qualify for this year.
 Smylie partnered with Nicole Provis and lost in quarterfinals to Gigi Fernández and Jana Novotná.
Elizabeth Smylie and Todd Woodbridge were the defending champions but they competed with different partners that year, Smylie with John Fitzgerald and Woodbridge with Nicole Provis.
Betsy Nagelsen and Elizabeth Smylie were the defending champions but they competed with different partners that year, Nagelsen with Lori McNeil and Smylie with Jana Novotná.
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 Women's Doubles tournament at the 1968 French Open was held from 27 May to 9 June 1968 on the outdoor clay courts at the Stade Roland Garros in Paris, France.
 The second-seeded team of Françoise Dürr and Ann Jones won the title, defeating the first-seeded pair of Rosie Casals and Billie Jean King in the final in three sets.
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.
Elizabeth Smylie (née Sayers, born 11 April 1963), sometimes known as Liz Smylie, is a retired Australian professional tennis player.
 During her career, she won four Grand Slam titles, one of them in women's doubles and three in mixed doubles.
 She also won three singles titles and 36 doubles titles.
Kathy Jordan and Elizabeth Smylie were the defending champions but they competed with different partners that year, Jordan with Alycia Moulton and Smylie with Catherine Tanvier.
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.
Eva Pfaff and Elizabeth Smylie were the defending champions but they competed with different partners that year, Pfaff with Manon Bollegraf and Smylie with Wendy Turnbull.

Question: Who won more doubles titles, Françoise Dürr or Elizabeth Smylie?
Answer: Elizabeth Smylie