I have also put this online now and as info comes in I will build it up or correct it as the need arises:
http://www.cambridgeairforce.org.nz/Albert_Marsden.html

Something I’d love to find is that photo of him in front of the 1000th Harvard rolled off the NAA production line, giving the thumbs up, which was reported in a few newspapers here in NZ in April 1941.