E. F. Johnson Company Building Aerial View. 6 1/2" x 4 1/2" black and white photograph of the E. F. Johnson Company corporate headquarters on 10th Avenue S.W., Waseca, MN; 299 Johnson Avenue S.W., Waseca, MN, before the construction of the new corporate headquarters in 1961; an aerial view. The new headquarters were added onto this structure to the west.