21 Concord Rd, Sudbury, MA 01776
Phone: (978) 443-1035
One of my earliest ancestors, Thomas Goodenow (1608 - 1666) lived in Sudbury. The library was named after a descendant of Thomas.
History and Genealogy Section, through the door (below), and expanding into the oldest part of the library (see NEHGS Register, in the unlocked outer room).
(Permission was granted to take photos.)