R. Bostwick appeared in two advertisements in The Union News (Union, New York.)  The first ad ran from June 11 to August 20, 1857.  Ambrotypes, Sphereotypes, Melainotypes and Stereoscopic Method of taking Pictures, all of which are of the latest improvements, and well known to some of the fraternity as being the most beautiful and durable of any process yet discovered.  Specimens of some of our own townsmen can be seen at my car in Union.  Cases sold 25 per cent less than usual.  Please give me a call before I leave again for the West.      R. Bostwick.  Union, Jan. 14, 1857.

The second advertisement appeared on August 27, 1857 and ran until April 22, 1858.

Ambrotypes.  A gallery In Union!  Now located in the Exchange Block, No. 1, where the Photographic Art will be pursued, with all the latest improvements in the art.  Pictures taken on different materials, such as Glass, Iron, Patent Leather, Paper and Parchment.

Also, instructions given in the art to those who wish.  Three different processes are used in transferring pictures from glass to a lighter and more convenient material, and for sending in letters or cutting for lockets.  Also, the Tinting process, which is beautiful and just the thing, long sought after for coloring the drapery.  Good substantial cases will be offered from fifty cents to six dollars.  Invalids taken at their residences if desired.  R. Bostwick.   Union, Aug. 25, 1857.

In the first advertisement there are several items worth bringing to your attention, no business address is given, and one can only assume that the gallery is in Union, New York.  Second is the date of the advertisement January 14, 1857.  Unfortunately June 11 was the first newspaper that I had access to for 1857.  The other interesting note is his statement about leaving again for the West.

The only other photographic directory that has a listing for R. Bostwick is Craig’s Daguerreian Registry that list a Ransom Bostwick in 1859-1860 in Union, New York without a business address.  It is probably the same person.