G'day John,
There is a Facebook page dedicated to Diamond T s and other stable-mates. It seems to be an international page with lots of contributions. It might be a good place to start to find out who is who...
Accessed December 6, 2016 from,
https://www.facebook.com/REODiamondTandReoenthusiasts
There is also Merv Bergman's History of Diamond T trucks page Accessed December 6, 2016 from
http://www.mervbergman.net/1940-diam...iamond-t-truck Apart from the "history" page it also has a restoration area as well - indexed to the left of the page.
Kind Regards
Lionel