Founded in 1890 by W. C. Leffel and Fuller Trump. W. C. was James Leffel's son. The company reorganized in 1892 as the W. C. Leffel Co. and again in 1895 as the Trump Mfg. Co.
Information Sources
- American Steam Engine Builders: 1800-1900 by Kenneth L. Cope, 2006 page 142