His "Dunalastair" class locomotives are particularly famous in British railway history for their advanced design and efficiency.
THE McINTOSH LOCOMOTIVES OF THE CALEDONAIN RAILWAY.40 PAGE BOOK PUBLISHED 1944
The McIntosh Locomotives Caledonian Railway A.B. MacLeod ABC Locomotive Booklet
L&NWR Locomotive Names: The Named Locomotives of the London and North Western Railway and Its Constituent Companies: No.8 (Locomotives of the LMS Series)
1936 - 1944 The Pennsylvania Railroad Railway Employee Pass Ticket x8
