Knudson House, A. Knudson, prop., 116 South Fourth. (Grand Forks and North Dakota Manual for 1885, William L. Dudley, Plaindealer Book and Job Rooms, 1885, Page 118)
Knudson House, 121-123 South 4th. (Grand Forks City Directory 1889-90, Chas. Pettibone & Co., Publishers, Aberdeen, S. D.)