Kenneth Robert Rosewall {'1': ", '2': ", '3': 'AM, MBE', '4': "} (born 2 November 1934) is a former world top-ranking amateur and professional tennis player from Australia.
 He won a record 23 tennis Majors including 8 Grand Slam singles titles and before the Open Era a record 15 Pro Slam titles and a record 35 Major finals overall.
 He won the Pro Grand Slam in 1963.
 Rosewall won 9 slams in doubles with a career double grand slam.
 He is considered to be one of the greatest tennis players of all time.
 He had a renowned backhand and enjoyed a long career at the highest levels from the early 1950s to the early 1970s.
 Rosewall was one of the two best male players for about nine years and was the World No. 1 player for a number of years in the early 1960s.
 He was ranked among the top 20 players, amateur or professional, every year from 1952 through 1977.
 Rosewall is the only player to have simultaneously held Pro Grand Slam titles on three different surfaces (1962–1963).
 At the 1971 Australian Open he became the first male player during the open era to win a Grand Slam tournament without dropping a set.
Larisa Savchenko-Neiland (née Savchenko; born 21 July 1966) is a former professional tennis player who represented the Soviet Union and Latvia.
 A former world number one ranked doubles player, Neiland won two women's doubles Grand Slam titles and four mixed doubles Grand Slam titles.
 She also won two singles titles and sixty-five doubles titles.
This is a list of the main career statistics of Australian former tennis player Margaret Court.
 She won 64 Grand Slam events (24 singles, 19 doubles, 21 mixed doubles), which is a record for a male or female player.
 Her 24 Grand Slam singles titles and 21 in mixed doubles are also all-time records for both sexes.
 She achieved a career Grand Slam in singles, doubles, and mixed doubles.
 She is one of two women to have achieved "the" calendar year Grand Slam in singles in the Open Era (alongside Steffi Graf), and is the only woman to have achieved the mixed doubles Grand Slam, which she did twice.
Judy Tegart Dalton (née Tegart; born 12 December 1937) is a retired professional tennis player from Australia who won nine Grand Slam doubles titles.
 She won at least one women's doubles title at each Grand Slam tournament, a "career Grand Slam".
 Five of her doubles titles were with Margaret Court.
 Tegart was the runner-up in 10 Grand Slam doubles tournaments.
Robert Anthony John Hewitt (born 12 January 1940) is a former professional tennis player from Australia.
 In 1967, after marrying a South African, he became a South African citizen.
 He has won 15 major titles and a career Grand Slam in both men's and mixed doubles.
Richard Crealy (born 18 September 1944) is an Australian former tennis player most notable for reaching the finals of the Australian Open in 1970, being a member of the 1970 Australian Davis Cup Team, and winning four Grand Slam titles in doubles.
The Williams sisters are two professional American tennis players: Venus Williams (b. 1980), a seven-time Grand Slam title winner (singles), and Serena Williams (b. 1981), twenty-three-time Grand Slam title winner (singles), both of whom were coached from an early age by their parents Richard Williams and Oracene Price.
 There is a noted professional rivalry between them – between the 2001 US Open and the 2017 Australian Open tournaments, they met in nine Grand Slam singles finals.
 They became the first two players, female or male, to play in 4 consecutive grand slam singles finals from the 2002 French Open to the 2003 Australian Open; Serena famously won all 4 to complete the first of two "Serena Slams".
 Between 2000 and 2016, a 17-year span, they collectively won 12 Wimbledon singles titles (Venus won 5 and Serena won 7).
 By winning the 2001 Australian Open women's doubles title, they became the 5th pair to complete the Career Doubles Grand Slam and the only pair to complete the Career Doubles Golden Slam.
 At the time, Venus and Serena were only 20 and 19 years old, respectively.
 Since then they have gone on to add another two Olympic gold medals in the 2008 Beijing Olympics and the 2012 London Olympics.
 Nearly a decade later, the duo would go on to win 4 consecutive grand slam doubles titles from 2009 Wimbledon through 2010 Roland Garros, which would catapult them to co-No.
 1 doubles players on 7 June 2010.
 Two weeks later, on 21 June 2010, Serena would hold the No. 1 singles ranking and Venus would be right behind her at No. 2 in singles.
 Their most recent grand slam doubles titles came at the 2012 Wimbledon & 2016 Wimbledon events.
 They remain very close, often watching each other's matches in support, even after one of them has been knocked out of a tournament.
Pam Teeguarden (born April 17, 1951) is a former American professional tennis player in the 1970s and 1980s, ranked in the top 20 from 1970–1975, according to "John Dolan's Women's Tennis Ultimate Guide", prior to computer rankings.
 She won two Grand Slam Doubles Titles and was a quarter finalist in singles at the U.S. Open and The French Open.
 Her father Jerry, a well known coach, helped Margaret Court win the coveted Grand Slam (all four Grand Slam titles in one year) in 1970 and Virginia Wade to her 1977 Wimbledon triumph.
 Teeguarden was voted the "Most Watchable Player" based on play and appearance by a group of Madison Avenue advertising executives or "Mad Men" while playing at the US Open.
 Teeguarden played in 19 consecutive US Opens, holding the record until Chris Evert played in 20.
 She wore the first all black outfit in the history of tennis in 1975 at The Bridgestone Doubles Championships in Tokyo, starting a trend that is still popular today.
 Teeguarden was the first woman tennis player signed by Nike.
 She played on the victorious Los Angeles Strings Team Tennis team in 1981 and won the Team Tennis Mixed Doubles Division with Tom Gullikson in 1977; they were also runners-up in the league that year.
Cara Black (born 17 February 1979) is a professional tennis player from Zimbabwe.
 She is primarily a doubles specialist, winning 60 WTA and 11 ITF titles in that discipline.
 A former no. 1 ranked women's doubles player in the WTA Rankings, she has won ten Grand Slam titles in women's doubles and mixed doubles combined.
 By winning the mixed doubles title at the 2010 Australian Open, Black became the third woman in the Open Era to complete a Career Grand Slam in mixed doubles (after Martina Navratilova and Daniela Hantuchová).
 Having won one singles title on tour, she also peaked at no. 31 in the singles rankings in March 1999.
Martina Hingis (born 30 September 1980) is a Swiss professional tennis player, a former world No. 1 singles player and currently ranked world No. 2 in doubles by the WTA.
 She has spent a total of 209 weeks as the singles No. 1 and has won five Grand Slam singles titles, thirteen Grand Slam women's doubles titles, winning a calendar-year doubles Grand Slam in 1998, and seven Grand Slam mixed doubles titles; for a combined total of twenty-five major titles.
 In addition, she has won the season-ending WTA Championships two times in singles and three times in doubles, and an Olympic silver medal.

Question: Who won the most Grand Slam titles in doubles, Bob Hewitt or Dick Crealy?
Answer: Richard Crealy