I'm re-scanning all of my NG negatives and I'm going to try and date them while I'm at it... (God help my sanity- it's a dreadful task!)

What Summer was it that the 484 & 488 were out of action, in the shop at Chama? (the 484 had gone in the ditch the Fall/Winter before)

What was the last year the 497 ran?

What was the last year the 463 ran, before it's current life? Or maybe put another way- what years was the 463 last out of service?

Earl- what year was it that the British group chartered all the freights? This included your backing the 463 & tanks to Labato in the early AM.

I'll have plenty more Q's as I go along- I'm scanning about 50 rolls of 35mm shot between 1995 and 2010.
Thanks in advance!
SR