G. A. Hendricks
G.A. Hendricks was a bookseller and stationer with a store at 615/616 Front Street (now Main Avenue). He is only listed in the 1885 and 1887 Fargo city directories.
The back of the trade card shown above lists items for sale including "anything in the line of standard, miscellaneous or school books, magazines, fashion books, libraries, fine stationery, fancy goods, music, music books, musical merchandise, wall paper and decorations, blank books, and office or school supplies."
Sources:
Fargo and Moorhead City Directory. Fargo, 1881-1927.