1911 Encyclopædia Britannica, Volume 16… (1911)
“ Lockport is served by the Chicago & Alton, and the Atchison, Topeka & Santa Fé railways, and by the Chicago & Joliet Electric railway. It is in a picturesque farming country, and there are good limestone quarries in the valley of the Des Plaines river. It has manufactures and a considerable trade, especially in grain. ”
