Valleyfield
Papermaking was started at Valleyfield, Penicuik in 1709 by Sir John Clerk and Agnes Campbell. It passed through various hands until 1779, when it was taken over by Charles Cowan, who ran the mill with his sons, Alexander and Duncan. A papermaking machine was installed in 1821. It eventually became the largest paper-mill in Scotland. Valleyfield closed on 1 August 1975, ending 267 years of papermaking.
For the full history of Valleyfield Mill see Penicuik Papermaking