The Harvard Street was part of the New York and New England Railroad, later the Fairmount Line.
An illustration of the Harvard Street Depot appears on a subdivision plan of land recorded at the Suffolk County Registry of Deeds at book 1720 page 53.
No. 24923
The footprint of the depot building appears in the 1874 Hopkins atlas of Dorchester and in later atlases through the last atlas of Dorchester in 1933.