Question: George Downer's partner in the legal firm G & J Downer was the Premier of South Australia how many times?

Context articles: George Downer
John Downer
Myerson &amp; Kuhn
Avenue Range, South Australia
George Moore (Australian radio presenter)
Ben Rounsevell
First Holder Ministry
South Australian colonial election, 1899
Henry Edward Downer
Stephen Gerlach

Alexander George Downer (28 January 1839 – 17 August 1916), usually known as George, or A. G. Downer, was a prominent South Australian businessman and a partner with his brother Sir John Downer in the legal firm G & J Downer.
Sir John William Downer, KCMG, KC (6 July 1843 – 2 August 1915) was the Premier of South Australia twice, from 16 June 1885 until 11 June 1887 and again from 1892 to 1893.
 He was the first of four Australian politicians from the Downer family dynasty.
Myerson & Kuhn was a New York-based law firm that operated from 1988-1990.
 It was formed by name partners Bowie Kuhn and Harvey D. Myerson, former partner in the defunct Finley, Kumble, Wagner, Underberg, Manley, Myerson & Casey who brought some 80 attorneys with him from the unraveling firm.
 The new firm benefited from the arrival of former Finley, Kumble partners who brought such clients as Donald Trump, Lehman Brothers, Teleflex, Inc. and ConAgra.
 In 1989, the firm launched in Los Angeles with a group of 18 lawyers who defected from Shea & Gould.
 The firm suffered a spectacular collapse in December 1989 amid discord with its biggest client, Shearson Lehman Hutton, predecessor to Lehman Brothers over the alleged padding of legal bills, and mounting debts of over $11 million.
 Named partner Bowie Kuhn fled to Florida as creditors sought to hold him personally liable for up to $3 million in firm debts.
 When the press and his creditors finally found him in Northern Florida, Kuhn told the New York Times, “My multiple great-grandfather Dr. William Worthington was the first Governor of this section of Florida after it was acquired from Spain in 1819.”
 Harvey Myerson, first given the moniker “Heavy Hitter Harvey” for his litigation acumen was later given the nickname in the legal press, “Agent Orange of the legal profession″ due to his extravagant tastes and unfulfilled ambitions which drove his firm into the ground financially.
 For example, guests at the launch party for the firm each received a Cartier SA crystal apple with gold leaves and stem engraved with a quote from the Wall Street Journal remarking on the formation of the firm, 'A New Legal Powerhouse is Rising.'
 Though Myerson dreamt of relaunching a legal practice, he was sentenced to 70 months in federal prison for tax fraud and defrauding clients.
Avenue Range (formerly Downer) is a locality in the Australian state of South Australia located in the state's south-east within the Limestone Coast region about 265 km south east of the Adelaide city centre.
George Moore (formerly known as Les Pridmore), was born in Wagga Wagga, New South Wales, Australia.
 He has been on Australian radio for 40 years as a DJ, Announcer and Radio show host.
 He originally started his radio career at 2WG in Wagga Wagga during the late 1960s.
 During his time there he was also a singer with a popular Wagga rock band, "Lost & Found".
 Since then he has worked in Sydney radio stations with stints at 2SM, 2Day FM, 2UW/Mix 106.5, 2GB, and is currently with 2UE where he co-hosts the weekend breakfast show with Paul B. Kidd.
 Co-host Paul B. Kidd is a former dishwasher, mortuary attendant, crop-sprayer, jackeroo, TV salesman, cleaner, waiter, restaurateur, publican, caterer, poulterer, SP bookmaker, real estate salesman, photo-journalist, television presenter and script writer, columnist, features writer, magazine editor, publisher, author and currently a radio commentator.
 During his time on radio he has conducted interviews with major stars such as Ashley Judd and Angelina Jolie and with prominent Australian politicians, including former NSW premier Bob Carr, Prime Minister John Howard, Treasurer Peter Costello and Foreign Affairs Minister Alexander Downer.
William Benjamin Rounsevell (23 September 1843 – 18 July 1923), known as "Ben" or "Big Ben", was a South Australian politician.
 He was a member of the South Australian House of Assembly from 1875 to 1893 and from 1899 to 1906, representing the Burra and Burra Burra seats for all but one term, when he held Port Adelaide.
 He was Treasurer of South Australia four times: from May to June 1881 under William Morgan, from 1884 to 1885 under John Colton, from January to June 1892 under Thomas Playford II and from 1892 to 1893 under John Downer.
 He also served as Commissioner of Public Works from 1890 to 1892 under Playford, and again in the seven-day Solomon Ministry of 1899.
 His brother, John Rounsevell, was also a South Australian politician.
The First Holder Ministry was the 38th Ministry of the Government of South Australia.
 It commenced on 21 June 1892, when Frederick Holder succeeded in forming a government after the Second Playford II Ministry lost a confidence vote in parliament.
 It was succeeded by the Second Downer Ministry on 15 October 1892, after Holder himself lost a confidence vote.
 Lasting for only 116 days, it was one of the shortest ministries in South Australia.
Elections were held in the colony of South Australia on 29 April 1899, except for Albert, where the incumbent members were elected unopposed on 12 April, and Northern Territory, which voted on 6 May.
 All 54 seats in the South Australian House of Assembly were up for election.
 The incumbent liberal government led by Premier of South Australia Charles Kingston in an informal coalition United Labor Party (ULP) led by Lee Batchelor defeated the conservative opposition led by Leader of the Opposition John Downer.
 Each district elected multiple members, with voters casting multiple votes.
 Although the conservatives won more seats, the liberal government retained power until later that year, when new conservative leader Vaiben Louis Solomon forced the government to resign, but only held office for one week.
 The liberals held government until the next election through leaders Frederick Holder and John Jenkins.
Henry Edward Downer (22 March 1836 – 4 August 1905) was a South Australian politician.
 He was a brother of Sir John Downer and George Downer, and a noted lawyer and businessman.
Stephen Gerlach AO is a lawyer, company director, corporate advisor and the Chancellor of Flinders University in South Australia.
 He is a former chairman of oil and gas company Santos Limited and former managing partner of legal firm, Finlaysons.