1855 303 Broadway, New York, New York.
Erastus Steven of the firm De Guinon & Steven was recorded in two advertisements in The New York Herald (New York, New York). The first advertisement appeared on June 13, 1855. A Rare Chance Is Now Offered To An Enterprising person with small capital, to purchase very low, a first class photograph and daguerreotype gallery, now doing a splendid business, and one of the best locations in the city; the parties now interested are going to Europe. Inquire De Guinon & Steven, 303 Broadway, corner of Duane street.
The second advertisement appeared on June 21, 1855. A Rare Chance—For Sale, Or A Partner taken.—One of the partners of the photograph and daguerreotype establishment, No. 303 Broadway, is about going to Europe, and a rare chance is offered to a person with small capital, to buy out the establishment, or to join the remaining partner in conducting the business. A knowledge of the business not requisite, as the remaining party is an old daguerreotypist. Inquire De Guinon & Steven, 303 Broadway.
Erastus Steven is recorded in Craig’s Daguerreian Registry as Erastus Stever it is unknown which spelling is correct.