Uintah 50/51 - Sumpter Valley 250/251 Histories

Hi All,

Trying to get a correct chronological history on these two narrow gauge Mallets.

What is the correct headquarters for the Uintah Railway? Mack? Atchee?
Was the #50 taken out of service in 1939 and sold to G&H Supply Co.? The source that helped doesn't show this as the case for the #51
When was this officially retired and scrapped?
What city did these operate out of during IRCA?

Thanks,

Rich Wilkens

Type: 2-6-6-2 Side Tank Builder: Baldwin Const. Number: 59261 Built: 06-1926
Baldwin Spec. 16 XX/XX ¼ DD, X: (Vol., pdf)
Uintah Railway #50 (Three Foot Gauge)
Mack, CO 1926-1939
G&H Supply Co. (Dealer)
1939-1940
Sumpter Valley Railway #250
Baker, OR 1940-1947 – Side tanks removed, tender added
Hyman-Michaels Co. (Scrapper)
1947
International Railway of Central America (IRCA) #250
Guatemala 1947-19XX – Last operated 1962
Locomotive scrapped but tender returned to current Sumpter Valley Railway

Type: 2-6-6-2 Side Tank Builder: Baldwin Const. Number: 60470 Built: 04-1928
Baldwin Spec.: (Vol., pdf)
Uintah Railway Co. #51 (Three Foot Gauge)
Mack, CO 1928-1940
Sumpter Valley Railway Co. #251
Baker City, OR 1940-1947 - Side tanks removed and tender added
International Railways of Central America #251
Escuintla, Guatemala 1947-19XX