From a retired D&RGW engineer from 1975...

I have worked on all the Crystal River engines and remember the 432 very well. We had a quite a bit of trouble getting them to steam properly on Crested Butte coal and I note in Gilbert Latrop's book that he claims credit for keeping it hot the first time. Well Braswell was the regular fireman on the Crested Butte branch at that time and he was a good fireman, and if he couldn't keep an engine hot; Lathrop couldn't have come close. What happened was this, Braswell was used as an engineer and I caught the job the day before Lathrop fired her and while I didn't burn her up, old Lou Lathrop said it was the best anyone had done so far. Well I had a talk with Rex Clark, the boiler maker at Gunnison, and he made some charges in the draft appliances in the front end and Lathrop caught her the next day and the engine steamed and from then on anyone that could fire at all could keep it hot so I guess he was taking credit for something that wasn't due to his knowledge or ability.