In an advertisement which ran from May 24 to July 19, 1859  in the Long Island Farmer, and Queens County Advertiser (Jamaica, New York.)  Ambrotypes At A Low Price.  The subscriber, having fitted up Rooms expressly for Ambrotypes, is now prepared to furnish Likenesses of the very best quality, and at prices as low as any establishment in the Country, or in the World.  Knowing that his success must depend upon his work, he is determined to send out Pictures that will far surpass the average made in New York city.  His light is a Sky-Light and Side-Light Combined.  By this arrangement he hopes to retain the advantages of both, without the defects of either.

N. B.—No Picture finished until pronounced satisfactory. Especial care taken with children‘s portraits. Rooms in Fulton, two doors west of Washington St.  James V. Bergen.

Bergen does not appear in any other photographic directories that I have consulted.