Thomas Seay graduated from Southern University and practiced law before engaging in planting. He served in the Confederate Army and later held various political positions, including state senator and governor. Seay's tenure was marked by efforts to reduce taxes, increase social services, and improve civil rights and education in Alabama. He also played a role in the development of the state's infrastructure and industry.

Thomas Seay's political career reveals a complex blend of progressive social policies and exploitative economic practices. He championed increased social services and labor rights while simultaneously implementing the controversial convict lease system. Seay's establishment of new educational institutions for black citizens contrasts sharply with his support for a system that relied on forced labor. His tenure as governor saw both infrastructural advancements and significant social unrest, suggesting a calculated approach to balancing regional economic interests with social reforms.