BARRY COUNTY, MISSOURI PHOTO SHELL KNOB SCHOOLHOUSE (Photo Courtesy of Randy Vaughan ) Pictured below is a schoolhouse in the Shell Knob area. The date is the early 1900's. The photo submitted by Randy Vaughan belonged to his Grandmother Tilla Whisman. It states on the back of the photo that this is where Tilla went to school. Copyright. All rights reserved. http://www.usgwarchives.net/copyright.htm