Many Thanks to Rodger Polley for past posts which have given us some nice stuff from the cutting room floor that did not make the book. He also expressed his thought about the idea of a possible Standard Gauge URR engine at Mack and he is fully correct, there was none. I think we all found his review of the traffic movements at Mack very interesting.
The facts have just arrived from the Baldwin archives at the PA State Archives and they prove that Baldwin #37567 was built standard gauge and shipped (as #6) 5/10/1912 to Maurer, NJ (n of So. Amboy) for The Barber Asphalt Paving Company there. They also bought a #7, a 0-6-0 (6-34D-1001) in 1927 and both of these engines were replaced by a 45 ton Whitcomb in 1935. A 3/20/1936 letter to Baldwin from Barber expressed their like of the 230 HP switcher and it was used in a Whitcomb ad in the Baldwin magazine. Also, BAPCo. became Barber Co. and bought another 2-8-2 SG Number 20 that was sent to Venezuela in 1913.
This means we are still looking for one (or two) unknown engines that jumped the Uintah roster to 11 units on June 30, 1912. More questions to follow about the roster between 1926 and 1936.