Class A (Locobase 7283)
See data from DM&IR 6 -1951 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers were 39861-39864 in May 1913.
Northern Minnesota didn't have much call for passenger service, but the Iron Range found a need for more power than the Ten-wheelers could provide. They bought these small Pacifics that possessed a free-steaming boiler and 14" piston valves. Locobase doesn't know if the quartet was delivered with superheaters, but if not, the railroad installed them before too long.
All four engines served the D & IR, the DM & N, and the DM & IR on the same rails for 40 years; retirements came in 1953-1955.
See the larger DM & N Pacifics delivered by Baldwin in the same year in Locobase 7284.
Class P (Locobase 7284)
See data from DM&IR 6 -1951 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers were 39877-39879 in May 1913.
In the same time the Duluth & Iron Range took delivery of four light Pacifics (Locobase 7283), the same builder supplied these substantially larger engines to the DM & N.
Whereas the Iron Range's engines were branch-liners, the Northern's trio were headed to the main line. Free-steaming and fitted with 15" piston valves, these 4-6-2s served the DM & N and successor DM & IR into the 1950s before retiring in 1955 (401), 1958 (402), and 400 in 1959.