S. Hadley to Montague
Numbered as MA 63 in 1936. By 1939, the northern end of 63 had been shifted from Turner’s Falls to Miller’s Falls; the section of modern 47 north of Montague appears to have been unnumbered. Between 1946 and 1950, 63 was shifted to its modern routing and 47 took over the old routing south of Montague.
Dan Vincent’s MA 47 page