From the OHS Database Builders editor, April 7, 2016 -

Established by William B. D. Simmons in Boston, Massachusetts, 1860-1876.

Source:

• Orpha Ochse, The History of the Organ in the United States (Bloomington: Indiana University Press, 1975), 135.

NOTE: This entry was derived from David H. Fox, "Simmons, William Benjamin Dearborne (& Co.)" A Guide to North American Organbuilders  (Richmond, Va.: Organ Historical Society, 1991), 267, but has been limited to the information on the company. For information on the man, refer to W.B.D. Simmons (Builder ID=7883) —Ed.