This one's for Gary S.

[cn nutbar]

Hello Everyone---Gary,I edited my original post to include the wheel arrangements of each locomotive---correct me if I'm wrong,but I think this is what the Whyte classification system refers to.As well,I think for the most part,railroads used a common labelling system for their locomotives but there were variations.Originally the Canadian National called their 4-8-4s "Confederations" and the Union Pacific called their 2-8-2s "MacArthurs"---I'm sure there were other variations---hopefully some other members can provide some input on this issue.
Kevin---thanks for your kind remarks and the explanation of the feedwater system
biL---you made me laugh---nice to know there are still some other members who can still remember and appreciate steam engines