A sixth commissioner was appointed to represent port workers in 1954, perhaps indicating the growing influence of the Dockworkers Union. The trust was reorganised in 1978 to form the Port of Melbourne Authority, in line with modern organizational naming practice around the world, although its functions did not change greatly. It moved from its grand 1930 Market Street head office to the World Trade Centre (Melbourne) in 1983. Subsequent restructuring in 1997 saw the Melbourne Port Corporation take over property and assets, the Victorian Channels Authority berthing responsibilities, and Melbourne Port Services privatised and put out to tender. The Port of Melbourne Corporation was formed on 1 July 2003, taking over the Melbourne Port Corporation, and the Victorian Channels Authority. Maintenance workshops erected in Williamstown. The trust operated a series of dredges including:  The North and South Wharves were extended downstream, and in the 1930s-1950s Appleton Dock was reconstructed and extended, followed by Swanson Dock, and Webb Dock. Tito Vanzetti  Tito Vanzetti (29 April 1809, Venice – 6 January 1888, Padua) was a famous surgeon and professor of medicine of the 19th century. He studied surgery at the University of Padua under Bartolomeo Signoroni (1797-1844) and at the University of Vienna with Joseph Wattmann (1789-1866). Several years later, he was appointed professor of clinical surgery and ophthalmology at the University of Kharkiv. In 1853 he returned to Padua as a professor of clinical surgery. In 1846 he performed the first ovariotomy in Russia. Vanzetti is credited for introducing a procedure of manual compression for treatment of popliteal aneurysms. He became rector of the University of Padua in 1864. Together with other 16 professors, he was dismissed in 1866, after the annexation of Venetia to Italy, because of his position of support to old Austrian rule. He was reintegrated soon after, under international pressure. He was made member of several scientific academies and societies. Sentilo  Sentilo (possibly Quechua for peccary) is a mountain in the Cordillera Blanca in the Andes of Peru. It is located in Ancash Region, Huaylas Province, Santa Cruz District. Sentilo lies at the Punta Unión pass, the highest point of the Santa Cruz valley, south of the mountains Rinrijirca and Pucajirca, southwest of Taulliraju, and northeast of mountains Artesonraju and Parón.