Webb Sheilds, an Irishman. He persuaded the New South Wales legislature to pass an Act on 27 July 1852 requiring all railways in the colony to be of gauge. This was the gauge in use in Ireland and is now referred to as broad gauge. After Sheilds resigned because of the difficulties, a Scot named James Wallace was appointed. Wallace persuaded the legislature to repeal the previous act and replace it, on 4 August 1853, with one requiring a gauge of – the current standard gauge of . (Unfortunately for Australia, the legislation requiring the broad gauge had been noted in the colonies of Victoria and South Australia and some rolling stock ordered.) The Sydney Railway Company encountered many troubles: engineers came and went; real estate required became expensive and difficult to acquire; money, supplies and manpower ran short, partly because of a gold rush. Eventually the property of the Sydney Railway Company was transferred to the government of New South Wales on 3 September 1855. The line opened on 26 September 1855, from Sydney to Parramatta Junction (near Granville station), with stations at Newtown, Ashfield, Burwood and Homebush. The Sydney terminal station was on the south side of Devonshire Street, just south of the current Central station. Although the vicinity was sometimes referred to as Redfern, it was not near the current Redfern station. This line is still the core line of the Sydney suburban rail system. Sydney's suburban rail network further developed from main line railways constructed in the 19th century, together with branches built in the late 19th and early 20th century. The existing network was electrified from 1926 at 1500 V DC under a plan by John Bradfield (in the 1920s and 1930s) and later modifications to his plan. In 1932, the Sydney Harbour Bridge was completed and the key inner city line from Central to Town Hall, Wynyard, Milsons Point and North Sydney was opened. In 1956, the Circular Quay station opened, completing the City Circle. The underground Eastern Suburbs railway was completed to Bondi Junction in 1979. In 2000, the line to Sydney Airport and Wolli Creek was opened, with the Epping to Chatswood Rail Link being opened in 2009. The most recent addition to the suburban network is the South-West Rail Link, opened in 2015. A branch line was built from Clyde to Camellia in 1888 and extended to Carlingford in 1896 by