Sladen was born in England near Walmer, Kent, the second son of John Baker Sladen,[1] deputy-lieutenant of the county. He was educated at Shrewsbury and later at Trinity Hall, Cambridge.[2] In 1840, he graduated with a Bachelor of Laws (LLB). He migrated to Australia in 1841, and in February 1842 arrived in the Port Phillip District (later Victoria). He was soon admitted to the Victorian bar, and practised as a solicitor in Geelong until 1854, when he took up farming near Winchelsea. In 1840 he married Harriet Amelia Orton. In 1851–52 he played cricket for Victoria.[3]
A firm conservative, Sladen re-entered politics in November 1864 when he was elected to the Legislative Council for Western Province in a by-election.[1] When the liberal Premier James McCulloch resigned in May 1868 during the conflict between the government and the Council over the proposed grant to retiring GovernorCharles Darling, Sladen was asked by the new Governor, Sir John Manners-Sutton, to form a government.
Sladen found himself in a hopeless situation, since he was a member of the upper house at a time when it was increasingly accepted that the leader of the government must come from the Assembly – he is the only member of the Council ever to serve as Premier. Since he had little support in the Assembly, his government had no prospect of long-term survival. Following the resolution of the Darling grant crisis, he stepped down in July, and in September he retired from the council.
In September 1876 Sladen was again elected to the Council for Western Province,[1] and became the de facto leader of the Council in its conflicts with the Assembly. Despite being very conservative, Sladen recommended that the franchise for the Council be extended, and that the property qualifications for membership be reduced. These reforms were enacted in 1881. Sladen retired in 1882 due to poor health and died in 1884 in Geelong.
Geoff Browne, A Biographical Register of the Victorian Parliament, 1900–84, Government Printer, Melbourne, 1985
Don Garden, Victoria: A History, Thomas Nelson, Melbourne, 1984
Kathleen Thompson and Geoffrey Serle, A Biographical Register of the Victorian Parliament, 1856–1900, Australian National University Press, Canberra, 1972
Raymond Wright, A People's Counsel. A History of the Parliament of Victoria, 1856–1990, Oxford University Press, Melbourne, 1992