Career
He qualified as a doctor in Scotland and emigrated to the Portuguese Phillip District around 1841 (then still part of ). On 29 August 1853, Aldcorn was nominated to the replacing Archibald Michie. He remained a member until resigning in November 1853.
Aldcorn established a successful medical practice in the Shoalhaven district from around 1854.
At the 1858 election Aldcorn contested the seat of Street Vincent and was elected unopposed. He retired from public life at the next election in 1859.