Question: The 1952 Australian Championships was held at a venue named after a drive that seperates it from what river?

Context paragraphs:
Joyce Fitch: Joyce Fitch Rymer (born 3 April 1922) is a former tennis player from Australia who reached the women's singles final of the 1946 Australian Championships, losing to Nancye Wynne Bolton 6–4, 6–4.  She teamed with Mary Bevis Hawton to win the women's doubles title at the 1946 Australian Championships, defeating Bolton and Thelma Coyne Long in the final 9–7, 6–4.  Rymer and Hawton reached the women's doubles final at the 1947 and 1951 Australian Championships, losing both years to the Bolton-Long team.  In 1946, 1947 and 1949 she reached the finals of the Australian Championships in mixed doubles with partner, John Bromwich and again in 1950 with Eric Sturgess, losing all four times.

George Holland (tennis): George Holland (1918–unknown) was an Australian tennis player.  In 1938, tennis legend Don Budge said that, among the younger and less prominent players he had seen on his trip to Australia, Holland had the brightest future.  "I have selected him after careful study of most of the leading young players.  I watched many of them in match play during the Australian championships when they did not know I was about" said Budge, in an article in The Sydney Morning Herald on 14th February 1938.  Budge went on to describe Holland's game by saying "he has a forceful service, hits his ground strokes with freedom and likes to chase them to the net, where he volleys and smashes severely, with just a dash of drop-volleys thrown in occasionally.  And he possesses a splendid temperament.  I summed him up as a clear-thinking lad with a heart as big as his happy outlook on life".  George Holland made his debut in the Australian championships in 1937 and lost to Arthur Huxley in round one.  At the 1938 Australian championships, 19 year old Holland beat Huxley 10-8 in the fifth set in round one.  Then in round two Holland caused a big upset by beating reigning French champion and third ranked player in the world Henner Henkel after losing the first 2 sets.  From the third set onwards, Holland "followed everything to the net and made some glorious volleys" and was in command of the match.  "His groundstrokes had more penetration, he rarely missed his first serve, and he treated Henkel's cannon-balls in cavalier fashion to take command of the attack" according to The Argus.  In the quarter finals, Holland lost in four sets to Adrian Quist.  In the first round of the 1939 Australian championships, Holland lost in round one to Vivian McGrath in straight sets.  During World War 2, Holland reached the rank of Lieutenant.  After the war, Holland resumed his tennis career.

1967 Australian Championships: The 1967 Australian Championships was a tennis tournament that took place on outdoor Grass courts at the Memorial Drive, Adelaide, Australia from 20 to 30 January.  It was the 55th edition of the Australian Championships (now known as Australian Open), the 14th and last one held in Adelaide and the first Grand Slam tournament of the year.  The singles titles were won by Australian Roy Emerson and American Nancy Richey.

1952 Australian Championships – Men's Singles: Ken McGregor defeated Frank Sedgman 7–5, 12–10, 2–6, 6–2 in the final to win the Men's Singles tennis title at the 1952 Australian Championships.

1949 Australian Championships: The 1949 Australian Championships was a tennis tournament that took place on outdoor Grass courts at the Memorial Drive, Adelaide, Australia from 22 January to 31 January.  It was the 37th edition of the Australian Championships (now known as the Australian Open), the 9th held in Adelaide, and the first Grand Slam tournament of the year.  The singles titles were won by Australian Frank Sedgman and American Doris Hart.

James Gilchrist (tennis): James Gilchrist (1919–unknown) was an Australian tennis player.  He was reaching his peak just as World war 2 broke out.  After serving in the war, Gilchrist resumed his career.  Gilchrist had a good serve and powerful forehand, but a weak backhand, though he worked hard to improve it.  Gilchrist won several tournaments, but at the Australian championships he often lost to Bromwich or Quist, the two best Australian players of that era.  Gilchrist made his Grand Slam debut at 1936 Australian championships and lost in round two to Adrian Quist.  In 1938 he lost in round two to John Bromwich.  In 1939 he reached the quarter finals and lost to Jack Crawford in five sets.  At the Australian championships in 1940, Gilchrist beat Jack Cummings before losing to Quist in round two.  In 1947 he lost in round two of the Australian championships to Bromwich.  In 1951 he lost in the second round to Quist.

1952 Australian Championships: The 1952 Australian Championships was a tennis tournament that took place on outdoor Grass courts at the Memorial Drive, Adelaide, Australia from 19 January to 28 January.  It was the 40th edition of the Australian Championships (now known as the Australian Open), the 10th held in Adelaide, and the first Grand Slam tournament of the year.  The singles titles were won by Australians Ken McGregor and Thelma Coyne Long.

1929 Australian Championships: The 1929 Australian Championships was a tennis tournament that took place on outdoor Grass courts at the Memorial Drive, Adelaide, Australia from 19 January to 28 January.  It was the 22nd edition of the Australian Championships (now known as the Australian Open), the 4th held in Adelaide, and the first Grand Slam tournament of the year.  The singles titles were won by British Colin Gregory and Australian Daphne Akhurst.

1952 Australian Championships – Women's Singles: Thelma Long defeated Helen Angwin 6–2, 6–3 in the final to win the Women's Singles title at the 1952 Australian Championships.

Memorial Drive Park: Memorial Drive Park, more generally referred to as "Memorial Drive", is a tennis venue, located adjacent to the Adelaide Oval, in the park lands surrounding the centre of Adelaide, South Australia.  Memorial Drive took its name from the winding avenue, known as War Memorial Drive, which separates the venue from the River Torrens.

Supporting paragraphs: 1952 Australian Championships Memorial Drive Park
Answer: River Torrens