1857                Rooms at the Post Office Building, Amherst, New Hampshire.

William Richardson was recorded in two advertisements in The Farmers Cabinet (Amherst, New Hampshire).  The first advertisement ran from November 18 to December 2, 1857.Better Times Coming!  Pictures for the People only 37½ cts.  Wm. Richardson would respectfully inform the citizens of Amherst and vicinity, that he has opened Rooms at the Post Office Building, for the purpose of Making the new and beautiful style of pictures—the Ambrotype—the only Picture that will not fade or change.  Having a new and complete Apparatus of superior quality, with long experience in the business, he assures the public hat no pains will be spared to produce as good Likenesses as at other establishments.  Adults taken equally well in any weather.  Particular attention paid to copying Pictures.  Call early as he will remain but a few days.  Amherst, Nov. 17.

The second advertisement was recorded on December 9 & 16, 1857.  Ambrotypes!  Wm. Richardson would respectfully inform the citizens of Amherst and vicinity, that he will remain but 10 Days Longer at his recent location, (Post Office Building,) where he will be pleased to accommodate all who are in want of those Beautiful Ambrotypes, Melainotypes &c.  Amherst, Dec. 8, 1857.

William Richardson is not recorded in other photographic directories.