585 Boylston Street, Boston
Chauncy Hall Building, October 4, 1912. Courtesy of the City of Boston Archives. Windows have lettering for MWSA, BESAGG, and Woman's Journal. Other suffrage organizations were located here, mainly 1909-1919. See chart of organizations at bottom of page here.
The building is still there, across from Copley Square, at 585-591 Boylston Street. Photo February 26, 2020, by Lyle Nyberg.