colorado hirailer posted:This tidbit makes me wonder about what were the years, brand and applications of first U.S. (industrial?) diesel locos used in quantity (2 or more?).
The Alco/GE 60 ton boxcab was probably the first successful, commercially available diesel locomotive. The demonstrator (sold to CNJ) Lehigh Valley and B&O 60 ton boxcabs were built in 1925.
Rusty