Redfield, W. C. 1., & Young, J. H. (1830). Sketch of the geographical rout of a great railway: By which it is proposed to connect the canals and navigable waters, of New-York, Pennsylvania, Ohio, Indiana, Illinois, Michigan, Missouri, and the adjacent states and territories ; opening thereby a free communication, at all seasons of the year, between the Atlantic states and the great valley of the Mississippi (2nd ed., with additions.). New York: G. & C. & H. Carvill..

Redfield, W. C. 1789-1857., and James H. Young. Sketch of the Geographical Rout of a Great Railway: By Which It Is Proposed to Connect the Canals and Navigable Waters, of New-York, Pennsylvania, Ohio, Indiana, Illinois, Michigan, Missouri, and the Adjacent States and Territories ; Opening Thereby a Free Communication, At All Seasons of the Year, between the Atlantic States and the Great Valley of the Mississippi. 2nd ed., with additions. New York: G. & C. & H. Carvill., 1830.

Redfield, W. C. 1789-1857., and James H. Young. Sketch of the Geographical Rout of a Great Railway: By Which It Is Proposed to Connect the Canals and Navigable Waters, of New-York, Pennsylvania, Ohio, Indiana, Illinois, Michigan, Missouri, and the Adjacent States and Territories ; Opening Thereby a Free Communication, At All Seasons of the Year, between the Atlantic States and the Great Valley of the Mississippi. 2nd ed., with additions. New York: G. & C. & H. Carvill., 1830.