Yard goats from the 1950's

Does anone know of any good yard goats that are steam or diesel that are a Union pacific that go with a 1950’s theme.

This link will take you to a comprehensive history of UP EMD diesel switchers during this era:

http://www.utahrails.net/articles/up-sw-early.php

And for Alco, Baldwin, and F-M, see:

http://www.utahrails.net/articles/up-sw-other.php

UP used 0-6-0s in various classes. See the Kratville books for steam, and Don Strack’s “Union Pacific Switchers and Slugs”, $24.95 from Withers Publishing, for the complete story, rosters, and photos of diesels.

RWM

When in the 1950s? That was a decade of possibly the most change in diesel models ever. They had Baldwins and EMDs for sure. I would have to guess but just about any EMD through an SW-7 was probably on the railroad somewhere. Same thing with any Baldwin switcher.