| A | B |
| Joseph Smith | founder of Mormonism |
| Nauvoo | originally Commerce, Illinois, renamed by the Mormons |
| Cave-in-Rock | the site of numerous criminal activities in Hardin County, IL |
| Brigham Young | led the Mormons to Utah territory |
| James Ford | had a legitimate ferry business but also some criminal associates in Southern Illinois |
| Illinois Central | received a land grant to build track from Galena to Cairo |
| Harpe family | worst group of people to occupy Cave-in-Rock, nation's first serial killers |
| Nauvoo Legion | independent militia controlled by Joseph Smith |
| Regulators | group of vigilantes |
| Internal Improvements Act | provided $10 million for the canal and railroad projects |
| John Duff | leader of a gang of coin counterfeiters |