This might be a real long shot but..
There is a gentleman who has done a tremendous amount of research on the Santa Fe Train and has even written several books ( 3 I think ).
I don’t know the exact best way to contact him, but this is what little I do know.
His name is Ron Kessler and he lives/lived in Del Norte Colorado or Monte Vista ( It was between these two towns and I don’t know which one his address went to).
I think that if you search some of the book sites you will find his books.
Hope this leads you to some real help.
Glenda L. Dees