The Bathurst class minesweeper, (corvette), HMAS CASTLEMAINE, (LCDR P. J. Sullivan, RANR(S)), was commissioned. CASTLEMAINE was laid down in Williamstown Dockyard, Melbourne, on 17 February 1941, and launched on 7 August 1941. Mrs R. G. Menzies, (Wife of the Prime Minister), performed the launching ceremony.