Old farm machinery. Yuba tractor c1916 with gang plows, c1916, Walter A. Hilden

Old farm machinery. Yuba tractor c1916. Walter A. Hilden (2nd from left)

Old farm machinery. Yuba tractor c1916

Old farm machinery with Roy Hilden on the left plowing, c1917

Old farm machinery with Roy Hilden on the left plowing, c1917

Old farm machinery. Yuba tractor , hay wagon, trap wagon, c1915

Old farm machinery, Walter Hilden on 1958 tractor with Bill Bors, 1958

Old farming machinery. -c1925. Harris harvester-Yuba tractor. Chester Riel, Ole Olson, Roy Hilden

Roy Hilden on Yuba tractor

Old farm machinery, Johnson hay loader. Walter Hilden in truck with Earl Miller, June 1949