I grew up in the big house on the corner in the top center. There is only one building standing out of the three and that is the one close to the road on the bottom on the picture

That's 4th and Pine Streets in Marathon City looking North/North East. The feed mill on 4th Street (bottom long building) is the Marco Co-Op and the two buildings behind Marco, along Pine St are Menzner Lumber Co buildings, one of which was a hardware store. Looks like two pulpwood gondola cars on the C&NW railroad making a delivery to Menzner's.