Red River and Gulf #106 was built by the Baldwin Locomotive Works in September 1923. It was a 4-6-0 type locomotive, very similar to Crowell #400, with builder's number 57203, and it cost $29,520. It was the last new locomotive built for the RR&G RR and the second to last built for the Crowell companies. Built to haul freight trains on the line from Long Leaf to Kurthwood, it worked in that service for 22 years, until September 1945. After that it hauled RR&G trains between Long Leaf and Lecompte. Between runs to Lecompte, Crowell Longleaf Lumber borrowed the engine to haul log trains from Meridian to Long Leaf. Engine #106 pulled the last train on the Red River and Gulf on March 31, 1953, and was retired on April 1, 1953. Stored mostly under cover since then, it is in the best condition of the three engines at Longleaf.