Hello Alastair:
You spotted that error before either Vin Gillman-Bate (in Toowoomba) or I (in Ottawa) did, although we both have death notices (slightly different from yours) with the correct date of October 24th '03 (and Frederick Calder is our nearest common ancestor). Here are his and my e-addresses:
igbate@gotalk.net.au
michael.keppel.jones@gmail.com
Michael.