On June 24, 1901 the Schenectady Locomotive Works merged with
seven other companies. The seven companies that merged with the
Schenectady Locomotive Works to form the American Locomotive
Company were Manchester, Brooks, Dickson, Cooke, Pittsburgh,
Rhode Island and Richmond.
ALCO joined with GE and Ingersoll-Rand in 1924 to produce the
AGEIR Boxcabs. In 1929 the McIntosh & Seymour Diesel Engine
Company, Auburn, NY, founded in 1885, was purchased by ALCO
and introduced the first two M&S powered models in 1931.