So are mine, unfortunately.
I just finished re-reading "on Time" by Franklin M Reck. It's the story of EMC/EMD and was written in 1948 just as EMD was reaching its stride.
He talks about the first gas electric doodlebugs, the first diesel electrics, the development of the E units and of the F units. Lots of fun and a quick read.
http://www.amazon.com/History-...n+time+franklin+reck
Apparently there is a later edition from 1950 that includes Canadian production.