to Jeffersontown abandoned. Blue Motor Coach Co. formed, providing replacement bus service. 1933 - Interurban line to Fern Creek abandoned, replaced with bus service operated by Blue Motor Coach Co. Bus service operated into downtown Louisville, not carrying local passengers within city. 1934 - Interurban line to Shelbyville abandoned, with no direct bus replacement. Southeastern Greyhound Lines already provided service along this route, on its route between Louisville and Lexington. 1935 - Interurban line to La Grange abandoned, replacement bus service operated by Chaudoin Bus Lines. Interurban line to Prospect abandoned, replaced with Paxton Bus Line route. After World War II, Paxton Bus Line would be succeeded by Goebel's Bus Line, and later Prospect Bus Line. Interurban line to Orell also abandoned, replaced with Louisville Railway Co. bus route. Virgil Pierce bus line sold to Blue Motor Coach Co. 1936 - Walnut becomes first trolleybus route in Louisville. 1938 - Newberg Bus Line begins operation, serving Newberg and Buechel areas southeast of downtown Louisville. The line would later be sold to Buechel Bus Co., which would later extend service to General Electric's appliance factory, completed in 1951. 1945 - Chaudoin Bus Lines sold to Kentucky Bus Lines. 1948 - Last streetcars replaced with buses Louisville Railway ended all streetcar service on the 4th Avenue Queen Loop route Derby Day 1948 - Blue Motor Coach Co. introduces service between Louisville and Middletown, over objections of Southeastern Greyhound Lines, already serving Middletown along its route between Louisville and Lexington. 1951 - its trolley buses ceased service on Market Street, Walnut and Fourth Street following the expiration of a power agreement with Louisville Gas and Electric and Louisville Railway Company.. 1951 - Louisville Railway Co. sold to Louisville Transit Co. Blue Motor Coach Co. discontinues Middletown bus route after a court battle, leaving Southeastern Greyhound Lines as the only provider of service along this route. 1953 - Louisville Transit Co. assumes Middletown service from Southeastern Greyhound Lines, after service proved to be inadequate and unprofitable for Greyhound. The Middletown route was formed by extending its St. Matthews Express bus route. 1958 - Louisville Transit Co. acquires Buechel Bus Co. 1972 - Louisville Transit Co. acquires Kentucky Bus Lines routes. 1974 - Louisville Transit Co. becomes publicly owned Transit Authority of River City. Discontinues service to Lagrange and Shepherdsville 1976 - Transit Authority of River City acquires Blue Motor Coach Co. 1977 - Transit