- Undated print of Old Sweet Springs, Monroe County, WV, Library of Congress, Prints and Photographs Division, Historic American Buildings Survey (HABS WV-55)
- Appleton's Illustrated Hand-book of American Summer Resorts (New York: D.Appleton & Co., 1893)
- Berkebile, Don H. Carriage Terminology: An Historical Dictionary (Smithsonian Institution Press, 1978)
- Beyer, Edward, Album of Virginia, 1857
- Burke, William, M. D. Red Sulphur Springs, Monroe County, Virginia. (Wytheville, Virginia, St. Clair Printer, 1860)
- Cohen, Stan, The Homestead and Warm Springs Valley Virginia (Charleston, WV: Pictorial Histories Publishing Co., 1984)
- Daumier, Honore, "Omnibus" (crayon and watercolor drawing, 1864 Walters Art Museum
- Dietz, Fred 1913: A Leaf From the Past (NY: Dietz, 1914)
- Fishwick, Marshall W., Springlore in Virginia (Bowling Green State University Popular Press, 1978)
- Hilton, George W.,"Transport Technology and the Urban Pattern," Journal of Contemporary History, Vol. 4, No. 3, Urbanism (Jul., 1969), 123-135.
- Huntt, Henry, A Visit to the Red Sulphur Spring . . . 1837 (Boston: 1839)
- King, Edward, The Great South; A Record of Journeys in Louisiana, Texas, the Indian Territory, Missouri, Arkansas, Mississippi, Alabama, Georgia, Florida, South Carolina, North Carolina, Kentucky, Tennessee, Virginia, West Virginia, and Maryland (Hartford, Conn.: American Publishing Co., 1875)
- Logan, Frances, The Old Sweet, biography of a spring (Roanoke, Va: [Lithographed by Hammond's Printing & Litho. Works] 1940)
- Martindale, Lana, Highways to Health and Pleasure: the Antebellum Turnpikes and Trade of the Mineral Springs in Greenbrier and Monroe Counties Virginia (Pearisburg, Virginia, December, 1994).
- Morton, Oren F., A History of Monroe County West Virginia (Baltimore: Regional Publishing Company, 1974)
- Motley, Charles B., Gleanings of Monroe County, West Virginia (Radford, Va.: Commonwealth Press, 1973)
- Noel Barrett Antiques & Auction Ltd., Carversville, PA. Generous permission to use image of cast iron toy omnibus.
- Stratton, E. M. The World on Wheels (NY: 1878)
- White, John H., Jr., Horsecars, Cable Cars and Omnibuses: All 107 Photographs from the John Stephenson Company Album, 1888 (NY: Dover Publications, Inc., 1974)
- Berkeley Springs
- Carriage Museum of America
- Rollingstock An extensive series of web documents by Hayes Hendricks about the builders of railway cars. Often with the general title "Builders of wooden Railway Cars ... and some of other stuff." Among the "other stuff" is a three-part history of The John Stephenson Company. We found this source invaluable.
- New York Transit Museum (MTA)
- Noel Barrett, Vintage Toys@Auction
- Cable Car Museum
- Online Course Materials at MIT
- Painting the Town, Museum of the City of New York
- The Thirteenth Man in the Omnibus. This short anecdotal account) appeared in the publication Punchinello (7 May 1870). The Cornell University Library Making of America series.
The Omnibus portion of our website is included courtesy of Sidney and David Mitchell, whose work gave the material an independent web presence prior to its inclusion here.