J. BERG.
The photograph gallery of Mr. Berg is the best appointed studio in the Northwest. He has spared no expense in fitting it up with every requisite to obtain the most perfect pictures possible, and consequently his business is very extensive. He also deals in picture frames of all kinds, steel engravings, etc.
Source:
Grand Forks and North Dakota Manual for 1885
W. L. Dudley, Publisher
Plaindealer Book and Job Rooms, Grand Forks, 1885.
Page 145