3-Decade Trolley Heyday Lures 75 To History Center Greater Oneonta Historical Society Executive Director Bob Brozowski, top photo, left, welcomes a standing-room-only crowd to rail historian Jim Loudon’s “The Otsego Trolley Line” lecture this afternoon at the History Center. Loudon (inset photo) recounted how the Oneonta & Otego Valley Railroad, founded in 1897, expanded to Hartwick, Cooperstown, Richfield Springs and, eventually, Mohawk, in a financially troubled 36-year history before, as the Southern NY Railroad, it finally collapsed in 1933, victim of…