1843                42 Beaver Street, New York, New York.

Benjamin C. Townsend of the partnership of Welton & Townsend Joseph C. Welton & Benjamin C. Townsend)[1] were recorded in one advertisement that ran from April 20 to 26, 1843 in The New York Herald (New York, New York).  Daguerreotype Plates.  “Scovills” first quality plates, pronounced by the first operators in this country, to be superior to any imported plates, for sale by their agents, Welton & Townsend, 42 Beaver street. 

Benjamin C. Townsend is not recorded in other photographic directories.  According to the 1842/1843 New York City directory their occupation was buttons at 42 Beaver Street, the following directory 1843/1844 their occupation was still listed as buttons but they had moved to 5 William. 

[1] 1842/1843 & 1843/1844 New York City Directory.