The South Australian House of Assembly comprised 36 members each elected from a different area. It was Governor Young who offered a prize of £2000 in 1851 for the first person to travel up the Murray River to its junction with the Darling River (now the town of Wentworth) in a paddle steamer. The prize was claimed in 1853 by Francis Cadell with his steamer "Lady Augusta" (named for Sir Henry's wife). Due to the difficulty of navigating the Murray Mouth, Young supported building the railway from the river port of Goolwa to the new sea port at Port Elliot (named after his friend, Charles Elliot). Young was president of the Adelaide Philosophical Society 1853–1854.