Singaporean migration to South Australia has occured from the early nineteenth century, however, when the Restriction Act 1901 was relaxed in 1967 there has been a significant increase of people coming to South Australia.
Sir Charles Todd was a leader in the fields of meteorology, astronomy and communications, and is best remembered for masterminding the construction of the Overland Telegraph Line.
A pioneering neurosurgeon, Cairns worked extensively in the field of head injuries and was one of the first to promote the use of crash helmets for motor cyclists.