KENNETH C. SPRINGIRTH, the author of 33 books on railroads and trolley car lines, has an interest in rail history as his father was a street car motorman in Philadelphia, and his grandfather was a street car motorman in Washington D.C. A native of Philadelphia, he commuted to Drexel Institute of Technology (now Drexel University) in Philadelphia by trolley car, subway, and sometimes commuter rail graduating in 1962.