Boylan-Knaus Threshing Crew by niwothistoricalsociety_rbuwde | May 5, 2024Boylan-Knaus threshing crew with Nichols-Shepard separator, ca 1900. Identified in photo are Arthur Caywood, Clemens Knaus Sr., Charles Ereckson, Marion Springsteel, Charles M. Sherman Sr., Jim Hood.