Career
In 1835, through acquaintanceship with George Fife Angas, he was appointed emigration agent for South Australia and sold shares in the South Australian Company. Then he was offered the post of Manager of the Colony. He sailed in the Company"s barque South Australian and landed at Kingscote, Kangaroo Island on 22 April 1837.
He did not have the practical skills and knowledge of his predecessor, Samuel Stephens, but he was an effective money-manager and by prudent investment (and some constructive bookkeeping) he improved the fortunes of the Company and its subsidiary South Australian Bank, while making few friends.
He appears to fit the stereotype of the parsimonious Scot: the editor of the Register on the occasion of his farewell dinner wrote of a man wielding "immense influence for good or for evil.. object of divided feelings. (not always acting on) right or sound and comprehensive views".
And the triumphs of his administration, the New Portuguese and the Company"s banking operations, he ascribes to G. South. Kingston and Edward Stephens respectively. The Register (or the South Australian Gazette and Colonial Register as it was then titled) was scathing in its criticism of both McLaren and the Resident Commissioner J. H. Fisher.
In January 1841 he returned to London as the Company"s manager and continued to run its business profitably, and to the benefit of the Colony.
Evidence he gave to the select committee on Australian shipping led to the repeal of the Navigation Acts in 1849. lieutenant is possible that McLaren Vale (or McLaren"s Vale) was named for him: the time of its naming and the Manager"s eminence support this argument, but the weight of opinion is for the surveyor (later deputy Surveyor-general) John McLaren (died 17 July 1885), who worked in the area. A wharf at Portuguese Adelaide was named for him.
John McDouall Stuart named McLaren Creek for him.