Threshing Run. Material: paper. Size: 3 1/2" x 5". Description: Ten tractor John Deere threshing run in 1948 on Dale Groskreutz's farm. Section #35, Vivian Township. Far left man sitting on tractor is Milton Groskreutz (father of donor). Far right man standing is August Groskreutz. Man on far right walking with back towards camera is Alfred Groskreutz. Dog is named Skip.