Matthias N. Forney

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Matthias Nace Forney (March 28, 1835January 14, 1908) was an American steam locomotive designer and builder. He is most well known for the design of the Forney type locomotive. Locomotives that he designed served the elevated railroads of New York City for many years before that system converted to electric power. One example of a Forney 0-4-4T locomotive built in 1902 by Baldwin Locomotive Works has been restored for daily operations on the Disneyland Railroad in Anaheim, California, as the railroad's number 5, Ward Kimball.

An 0-4-4T Forney type built in 1886 by SLM for Finnish State Railways.
An 0-4-4T Forney type built in 1886 by SLM for Finnish State Railways.

Forney was born March 28, 1835 in Hanover, Pennsylvania. He apprenticed with another prominent locomotive builder, Ross Winans, before joining the Baltimore and Ohio Railroad (B&O) as a draftsman in 1855. He left the B&O in 1858, then worked for the Illinois Central Railroad from about 1861 to 1864. In that position, he patented an 0-4-4T locomotive that was the first of the "Forney" types of locomotives, characterized by the truck (US) or bogie (UK) under the coal bunker/water tank. In 1865 Forney changed employers again, this time to the Hinkley Locomotive Works, where he stayed until 1870. At that time, he started working as an associate editor for Railroad Gazette and quickly earned a reputation as an expert in steam locomotive theory.

Forney was a founding member of the American Society of Mechanical Engineers, and he participated heavily in other engineering organizations such as the Master Car Builders Association.

He died on January 14, 1908 in New York, New York.

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The cover page to the 1875 edition of Forney's book.
The cover page to the 1875 edition of Forney's book.

Forney was the author of the book "Catechism of the Locomotive", first published in 1874. This work is recognized as the seminal authority on steam locomotive construction in the late 19th century. [1]

The Forney Transportation Museum in Denver, Colorado, is named in his honor.

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