A possibility, but looks like shortest walking route between Ashdon and Elsenham is almost 13 miles, but I can't find anything to definitely eliminate the Ashdon Mary either.
One of the staff at the Essex record office, Saffron Walden access point, told me people walked surprisingly long distances then, particularly to a market town like Saffron Walden. Newport was probably quite important then before the M11 was built, it would be on a major route.