William Crowther (1788-1839) arrived in Hobart with his young family in 1825. Unable to secure an official post, he established a private medical practice and was involved in the early stages of the movement to end the transportation of convicts to Van Diemen's Land. ;;Successive generations of Crowthers - William Lodewyk (1817-1885), Edward Lodewyk (1843-1931), and William Edward Lodewyk Hamilton (1887-1981) - practised medicine. William Lodewyk Crowther and his son Edward Lodewyk Crowther both entered politics, the former serving a short term as Premier in 1878-9.;;William Lodewyk Crowther was a controversial figure, now most widely remembered as the surgeon who took the skull of the recently deceased Aboriginal man William Lanne. His extensive business interests included a fleet of whaling ships, and the lease for guano mining on Lady Elliot Island.;;William Edward Lodewyk Hamilton Crowther served at Gallipoli and on the Western Front during the First World War. Knighted in 1964, he donated a large collection of books, manuscripts, pictures and other artefacts to the State Library of Tasmania.;;The Crowther manuscript collection includes records of other notable Tasmanian indiividuals and businesses as well as the Crowther family itself. ;;