New map of Iowa, 1854. Pisgah is the only town shown in Union County.
Afton & Pisgah. J. H. Colton, 1856.
Pisgah, West Union, and Afton. Map of Iowa & Nebraska, Johnson & Browning 1860.
New Hope, West Union, Olio, Afton, Philo, Union City & New Hope. - Map of Iowa & Nebraska, A. J. Johnson, New York, 1865.
Patriot, Olio, Afton, Philo, Union City &. New Hope. - C. B. Colton & Company, New York 1869.
Afton, Philo, and Union City. Map of Iowa & Missouri, 1872.
Iowa rail road map, 1872. Afton shown misspelled as Alton.
Before Grant & Spaulding Townships were formed. Creston shown as Highland. Map of Iowa & Nebraska, A. J. Johnson, New York, 1874.
Lee, New Hope, Thayer, Patriot, Olio, Tingley, Olivet, Philo, and Union City. C. B. Colton, New York, 1882.