1849-1850       Address Unknown, Sag Harbor, New York.

Douglas was recorded in an advertisement for Parker & Douglas which ran from May 12 to July 27, 1850 in The Corrector (Sag Harbor, New York).  Daguerreotype Likenesses Taken at Parker & Douglas’s Daguerrean Rooms, with a large and improved apparatus, and warranted to give perfect satisfaction.  Ladies and gentlemen are respectfully invited to call and examine their specimens.

Douglas was not listed in other photographic directories.  Because Douglas is such a common name activity dates and location provided no clues to his identity.