** As I find more information, this page will be updated. At the moment, my focus is lines of Western Massachusetts.**
The below map illustrates the street railways (and proposed lines) throughout the state of Massachusetts ​as of January 1915. Below that, a chart listing the lines of Massachusetts as of 1916, their mileage, passengers, and number of cars they owned.
As stated above, for now, the focus of this page is trolley lines of Western Massachusetts. This includes (but is not limited to):
  • Connecticut Valley Street Railway
  • Holyoke Street Railway
  • Springfield Street Railway
  • Springfield & Eastern Street Railway
  • Springfield & Hartford Street Railway
  • Western Mass Street Railway
The below map shows the Connecticut Valley Street Railway (left), a proposed Millers Falls to Orange Street railway (dotted at center), and the Northern Massachusetts Street Railway (right). The two active companies made up two-thirds of the Massachusetts Consolidated Street Railways, the other being the Concord, Maynard, & Hudson Street Ry. 
The Conn Valley Street Ry included lines formerly known as the Northampton & Amherst, the Greenfield, Deerfield, & Northampton, and the Greenfield & Turners Falls. This created a system that stretched from Amherst to Northampton and up to Millers Falls. 

Connecticut River Valley

The above map, circa 1905, illustrates how several separate companies created a system in western Mass and into Connecticut which allowed riders to travel from Greenfield to Hartford and beyond. Northampton, Holyoke, Springfield, and Hartford were all major street railway hubs at this time. 

Books & Pamphlets of the Trolley Era

Trolley lines ran every which way and stopped at different places, much like modern-day buses. Books and pamphlets were published to help the public in choosing a system to ride to get to their chosen destination. The first book below is a travelers guide, the second is more a scenic tour through the Pioneer Valley via trolley.