The Photographic Gallery offered both photographic services and retail sales of apparatus, supplies, and photographs themselves. Most common among the services seems to have been the portrait services and were Hannah's main venture.

An example of the extent of this portrait service can be seen in the production of the 'Gems' that Hannah created and used to promote her work by distributing to the previous years patrons. Hannah created and sent these out beginning in 1880 and ending in 1895. You can see examples of this work here.

While documentation of the details of these ventures, such as where goods were imported from for sale, or the customers they served, have been lost. Inferences can be made from the various journal newspaper and photograph sources that speak about the Maynard's work. It seems abundantly obvious that their business was a success. Their legacy is also a reflection of this.