SUDBURY — Dry stone walls are a familiar tradition in New England, but who builds and repairs them nowadays? 
Jamie Masefield, for one! 
The mason from Monkton was working on Monday at rebuilding a stone wall at Miller Hill Farm nursery and gardens off Route 73 in Sudbury. Masefield has been building and repairing stone walls full-time for 14 years. He has become so accomplished in his craft that Masefield is certified by the Dry Stone Wallers Association of Great Britain, where he has worked on similar walls with no mortar in the Lake District and Scotland. 
Masefield explains that the process evolved as farmers needed to clear their fields of rocks and it made sense to use the rocks to build walls to keep in livestock and mark the boundaries of their property. 
A well-built wall, he says, could last 100 years and the beauty is that after a century, it could be rebuilt using the same recycled stones.
Masefield works stone into barn foundations, retaining walls, stone trees and patios, along with restoring historic field walls to their original glory.