Hammond, Knowlton and Company was a silk manufacturer in operation prior to 1892. The company consolidated with other companies in 1918 to form the H.K.H. Silk Company. This company had mills in Putnam, Watertown, New London, and Woodbury, CT, as well as Haverstraw, NY. The company headquarters was in Watertown, CT. In early 1925, it appears that the company changed its name to the Heminway Silk Corporation. As a matter of local interest, it is worth noting that company treasurer Clarence Asahel Hammond-Knowlton resided in Mansfield Center, CT, on Knowlton Hill near Gurleyville Rd.