Original sentence: Overlooked in the literature of the antique farm equipment literature were all the machines made by the various "short line" companies like the New Holland Machine Company of Lancaster, Pennsylvania, the New Idea Spreader Company of Coldwater, Ohio, and the David Bradley Company of Kankakee, Illinois
Edited sentence: Overlooked in the literature of the antique farm equipment literature were all the machines made by the various "short line" companies like the New Holland Machine Company of New Holland, Pennsylvania, the New Idea Spreader Company of Coldwater, Ohio, and the David Bradley Company of Kankakee, Illinois