I could spend all day here. But then I've a heap of ancestors who migrated to Missouri long ago when it was the hinterlands:
A court database with old records is available for limited viewing. Type in last name then first name--separated by a comma. Example: Baker, William
https://s1.sos.mo.gov/Records/Archives/ArchivesDb/JudicialRecords/Default.aspx
Civil War records:
https://www.sos.mo.gov/mdh/CivilWar
Find anything that made you hoot out loud? I did. (And I just sent the link to my sister).