Thomas Theodore Crittenden began his career as a lawyer and served as a Colonel in the 7th Missouri State Militia Cavalry during the Civil War. He transitioned into public service, holding positions such as Missouri Attorney General and United States House Representative. As Governor of Missouri, he focused on law enforcement, economic policies, and public health initiatives, including reducing state debt and establishing state boards for health and mining. Post-governorship, he served as United States consul general in Mexico City and continued practicing law.

Thomas Theodore Crittenden balances law and order with judicial leniency, as seen in his efforts to suppress the James Gang while pardoning Robert Ford for assassinating Jesse James. His economic policies reflect a focus on debt management and strategic investments, such as collecting loans for the Hannibal and St. Joseph Railroad. Additionally, Crittenden's public health and education initiatives, including establishing the Missouri State Board of Health and increasing education funding, demonstrate a forward-thinking approach to regional development.