Colin Buchanan and his wife arrived in the vessel Andromache in Feburary 1839. The Andromache had departed Plymouth on 8th October 1838 with 231 emigrants and several cabin passengers.  James Douglass was employed as surgeon superintendent on the Andromache

Colin Buchanan was listed as qualified Medical Officer in January 1842 and was employed as the Medical Officer for the Australian Agricultural Company at Port Stephens where he used ether as an anaesthetic in 1847.

For more information see Australian Pioneer Medical Index