At Camden, the MCSA connected to an extensive network of private W.T. Carter Company rail lines that were used to transport freshly cut timber from remote logging camps to the sawmill. Starting in the 1940s, these rail lines were gradually phased out as the lumber company made increasing use of trucks for timber extraction. Since the lumber company owned both rail operations, this process made plenty of surplus W.T. Carter steam locomotives available for use by the MCSA, delaying the onset of dieselization. The MCSA would not obtain its first diesel-electric locomotive until 1960 and still used steam power until 1965, one of the last common-carrier railroads in Texas to do so.