Boston Elevated Railway Co. Track Plans 1915
Boston Elevated Railway Track Lengths of Surface Lines and Subway.
Corrected to June 30, 1915
Complied by BERy Department of Engineering
A. L. Plimpton, Civil Engineer
Other Track Plan Sets: West End 1892, BERy 1908, BERy 1921, BERy 1936, BERy 1946