I haven’t found a “Beattock station and summit” book – a gap in the market?! There are a couple of books on my wish list that sound useful:
Dumfries and Galloway's Last Days of Steam, Author: W.A.C. Smith
BRANCHES AND BYWAYS - SOUTHWEST SCOTLAND AND THE BORDER COUNTIES 1st Edition - January 2004 by Robert Robotham
LMS ENGINE SHEDS - VOL. 5 -THE CALEDONIAN RAILWAY, 1st Edition – 1987, by Chris Hawkins, George Reeve
I’ll tell you if they’re any good when I can find a copy...