SVRy Eng. 250 entered service 3-22-40 and 251 entered service 6-20-40. 19's tender went to 250 and 20's tender to 251. I think that 20's tender that is at least the frame is actually what is behind #19 today, per conversation with some of the guys that worked on 19's restoration. The water tank is a replacement.
SVRy 250 brought it last loads of lumber Bates to Baker 4-4-47. SVRy 251 brought it's last loads of lumber Bates to Baker 4-16-47. 251 was used on one additional round trip Baker-Bates-Baker hauling machinery on 6-20-47.