Balfour residence, 30 Union Street. Mrs. Walter Balfour was Mary Devens, aunt of General Charles Devens, who was born in this house before it became the home of the David Balfour. This Gen. Devens was at one time Attor. General of U.S. and later Assoc. Justice of the Supreme Judicial Court of Mass. His grandfather, Commissary Gen. Devens died in 1807.