Derry Southwestern Railway Company (La.), map showing route in 1921.  
  Source: United States John Alexander Kerr. Soil Survey of Natchitoches Parish, Louisiana, Southern Sheet [map]. [Washington, D. C.]: U. S. Dept of Agriculture, Bureau of Soils, 1921.  

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Derry Southwestern Railway Company (La.), Map Showing Route in 1921.
Information and images were digitized and proofread from the original source documents by Murry Hammond. Contact Murry for all corrections, additions, and contributions of new material.