References:

1.
Photo Collection, Hearn, William B.  wbhearn.com, Bill's Trolley Pages.
2.
Pennsylvania's Street Railways, 1997, Rohrbeck, Benson W. , Ben Rohrbeck Traction Publications
3.
Electric Railway Map of Pennsylvania, 1912.   PA State Railroad Commission
4.
5.
West Penn Railways, Pennsylvania Railway Museum Association, Inc., 1986 Reprint
6.
McKeesport Trolleys, A Piece of the Past, Ronald L. Beal, 1999
7..
West Penn Traction, CERA 110, Central Electric Railfans' Association, 1970
8.
windsor74@enter.net