Engine #7 and train of 20 cars of pine logs. Neches Valley Pine bound for Diboll, November 1907. Texas South-Eastern Railroad Engine 7 (a 1906 coal-burning Baldwin 44-ton Ten-wheeler) and crew pose with a pine log train on the mainline just west of Diboll. Engine 7 was one of eight locomotives then used by Texas South-Eastern Railroad in its Diboll operations.