The Dollar Tree Store in Osawatomie used to be a Safeway and then Bobâs, but that site has been the home of much more than the usual groceries and household staples. Just east of the main door, on the south wall, is a plaque reminding us that the Old Stone Schoolhouse once stood there. The Remington Lumber Yard followed that in the late 1880s and eventually became Ledigh and Havens Lumber. What isnât mentioned is the fact that one of the very first successful commercial ventures here â the Osawatomie Salt Company â was also there at Sixth and Brown.