Barnard, E. W., & Barnard, J. W. (1980). Catalogue of the Barnard-Wolford collection: A photographic record of Baltimore & Ohio system right-of-way structures and rolling stock, with certain other subjects of possible interest to historians and scale model builders. Shelby, Ohio: E. W. Barnard and J. W. Barnard, Jr..

Barnard, Eileen Wolford., and J. W. Barnard. Catalogue of the Barnard-Wolford Collection: A Photographic Record of Baltimore & Ohio System Right-of-way Structures and Rolling Stock, With Certain Other Subjects of Possible Interest to Historians and Scale Model Builders. Shelby, Ohio: E. W. Barnard and J. W. Barnard, Jr., 1980.

Barnard, Eileen Wolford., and J. W. Barnard. Catalogue of the Barnard-Wolford Collection: A Photographic Record of Baltimore & Ohio System Right-of-way Structures and Rolling Stock, With Certain Other Subjects of Possible Interest to Historians and Scale Model Builders. Shelby, Ohio: E. W. Barnard and J. W. Barnard, Jr., 1980.