Here’s a pretty good discussion of the Missouri Compromise with the two coauthors of A Fire Bell in the Past: The Missouri Crisis at 200.
The video’s description reads, “In 1820, the Missouri Compromise made Missouri a slave state and Maine a free state. In their book, A Fire Bell in the Past, authors Jeffrey Pasley and John Craig Hammond examined the events surrounding Missouri’s 1821 entry to the Union. This virtual program was hosted by the Kansas City Public Library.”
https://www.c-span.org/video/?514831-1/1820-missouri-compromise
Student of the American Civil War 