Keystone Bridge Company

• Essays about Keystone Bridge  - Compilation of various articles pertaining to the connecting structure's description and other related matters.
• Missouri Bridges - Keystone Bridge Company  - Overview of the contractor's conducted projects detailing their development operations. Mentions the conflicts they had.
• Wrought-iron Bridges: Descriptive Catalog  - Technical data and other description relating to the company's built bridge components including floor girders, roof trusses and other structures.