The Moseley Iron Bridge Company was founded by Thomas William Moseley in Cincinnati, Ohio around 1858 and existed until 1879.^[1] Moseley was an engineer, bridge builder, and designer. John Paul Verree used T.W.H. Moseley's designs for his bridge manufacturing business in Philadelphia, Pennsylvania.

Zenas King was hired by Moseley as a salesperson and represented Moseley at many bridge lettings, mainly in southern Ohio. King remained in Ohio and started his own bridge building business in Cleveland.^[2] In 1861, Moseley decided to move the company to Boston, Massachusetts. Moseley moved his business to Boston when he discovered marketing his iron bridge designs were ideal for areas in the New England area. The company was also known as the Moseley Iron Bridge Works of Boston.

The company changed names and locations several times between 1858 and 1879, including Philadelphia^[3] and New York.^[4][5]

• Railroad Bridge (1858)—Formerly spanning Sterrns Creek north of Ironton, removed and placed on exhibition in the Henry Ford Museum in Dearborn, Michigan.^[6]
• Murphy Road Bridge (c.1860)—Formerly spanning Walloomsac River, moved in 1958 to Bennington Museum, Bennington, Vermont; Thomas W.H. Moseley, designer, Moseley Iron Building Works, Boston, builder
• Upper Pacific Mills Bridge (1864)—North Canal, Lawrence, Massachusetts; Thowas W. Moseley, designer, Moseley Iron Building Works, Boston, builder
• Hare's Hill Road Bridge (1869)—Hare's Hill Road over French Creek, Kimberton, Pennsylvania; Thomas W. Moseley, designer, Moseley Iron Bridge & Roof Company, builder
• Monadnock Mills Bridge (1870)—Workers' access to Monadnock Mills, Claremont, New Hampshire; Thomas W. Moseley, designer, Moseley Iron Bridge & Roof Company, builder

• Thomas William Moseley
• Hares Hill Road Bridge
• Moseley Wrought Iron Arch Bridge
• Zenas King

• "The Golden Age of the Iron Bridge". by Eric Delony (American Heritage Magazine - Fall 1994, Volume 10, Issue 2). Archived from the original on 2008-09-04. Retrieved 2007-11-14.
• "Hares Hill Bridge". Structurae [en]: Hare's Hill Road Bridge (1869).
• "Hares Hill Road Bridge, Spanning French Creek, Kimberton, Chester County, PA". Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey.
• "DISCOVERING ZENAS KING". Paper delivered to the Society for Industrial Archeology by Allan King Sloan © 1999 June 5, 1999 - Savannah, Georgia.
• "Scientific American, Volume 40, No. 13 New Series, March 29, 1879. (page 6 of 7) Ad: Illustration: Corrugated Iron: THIS NEW, MOSELEY IRON BRIDGE AND, ROOF CO., CORRUGATED IRON,"Buildings, Roofs, Shutters, Doors, Iron Sashes, Skylights, etc.",5 Dey Street, New York".
• "RRHX-Railroad History Story: The Railroad That Went No Place, The History of the Detroit, Toledo & Ironton Railroad-Part I, by William C. Pletz, Ann Arbor Train and Trolley Watchers (written in 1979)". Archived from the original on 2005-09-22. Retrieved 2020-04-08.