Cousin of FC Irwin and was in partnership with him. Allocated 10,440 acres. Took 200 acres on the Swan in 1829 and 3,240 acres in 1830 as well as 7000 acres in the Avon district. Perth Lot A5 in 1833. In 1832 -1834 he was Advocate-General. In 1836 Census he was Commissioner of the Civil Court. William died 14 November 1860 at Swan.