Complex sentence: Other railways later reached Dumbarton, and the C&DJR was taken over by the larger Edinburgh and Glasgow Railway in 1862; it later became simply a branch of the larger North British Railway network.
Split into simpler sentences: Other railways later reached Dumbarton, and the C&DJR was taken over by the larger Edinburgh and Glasgow Railway in 1862. It later became simply a branch of the larger North British Railway network.