Electric Railroad to McGraw?

I was cruising an online topo map database tracing the route of the now-defunct Cincinnatus Branch of the DL&W/EL Railroad (former Erie and Central NY Railroad) when I came across this.

http://docs.unh.edu/NY/cort03ne.jpg

The map shows an "Electric Railroad" branching off of the Cinci's main line and going into the middle of McGraw. Does anyone know anything about this line?

Cortland County Traction Company.

Passenger service Cortland-McGraw, 5 miles, abandoned on Friday, 13 February, 1931. Freight service to McGraw was continued for a time but the trolley trackage in the village, as part of the abandonment agreement, was sold to the DL&W. A connection between the trolley line and the Cincinatus branch was built so that former trolley line customers in McGraw could be served by the DL&W.

Information from the book Cortland County Traction by Richard F. Palmer and Shelden S. King.