Complex sentence: Even after the name was changed to Fremont the town continued to be listed as Peggy on some maps for a number of years afterward, the 1911 Rand McNally & Co Atlas being one example.
Split into simpler sentences: Even after the name was changed to Fremont the town continued to be listed as Peggy on some maps for a number of years afterward. The 1911 Rand McNally & Co Atlas being one example.