Zadok Casey served as a Representative from Illinois in the United States Congress from 1833 to 1843. A member of the Independent Party, Zadok Casey contributed to the legislative process during 5 terms in office.

Zadok Casey’s service in Congress occurred during a significant period in American history. As a member of the House of Representatives, Zadok Casey participated in the democratic process and represented the interests of constituents, helping to shape the laws and policies that governed the nation.