Complex sentence: Unlike other nearby towns, Weston never had a railroad built through it, which hurt nonagricultural businesses, so between the Civil War and the Great Depression, the town's population dropped from about 1,000 to a low of 670 by 1930.
Split into simpler sentences: Unlike other nearby towns, Weston never had a railroad built through it, which stifled the development of non-agricultural businesses. Between the Civil War and the Great Depression, the town's population dropped from approximately 1,000 to a low of 670, by 1930.