On January 18, 1957, trains of the Michigan Central Railroad began serving LaSalle, operating on the New York Central Railroad's Lake Shore and Michigan Southern Railway from its former crossing at Porter, Indiana to Chicago. LS&MS and Michigan Central trains (both part of the New York Central system) last used LaSalle on October 26, 1968, (soon after the merger into Penn Central); the next day it began operation into Union Station via a connection in Whiting, Indiana and the Pittsburgh, Fort Wayne and Chicago Railway.