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 c1916 with gang plows, c1916, Walter A. Hilden

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

Roy Hilden plowing north of Vacaville

Farm machinery, old cars etc., c1925. Bill Dykes on motorcycle, Roy Hilden next to car

Old farm machinery with Roy Hilden on seed thrower wagon, c1917

Old farm machinery, tresher, motorcycle. Roy Hilden, Elmer Hilden, Bill Dykes

Old farm machinery. Arthur Hilden, Pope truck, c1928

Old farm machinery. Arthur Hilden, Pope truck, c1928