Adolphus Behn is recorded in an advertisement in The Lancaster Gazette (Lancaster, Ohio) on July 7, 1848.  The advertisement ran until August 25, 1848.

Daguerreotype.  The undersigned respectfully announces to the citizens of Lancaster        and the public in general, that he is prepared to take Daguerreotype Likenesses, both single ones and family groups.  The prices are from $1 to $3 according to size, frames included.  Office at Mr. Lange’s.  Wheeling Street, Opposite F. A. Foster’s Residence, from 9 to 12 and from 1 to 3 o’clock every day.  Adolphus Behn.  Lancaster, July 7, 1848.

An Adolphus Behn is recorded in Craig’s Daguerreian Registry and Biographies of Western Photographers as being in LaGrange, Texas in February 1847.  It is unknown if they are the same person.  He has not been recorded in other photographic directories.