[1] The Mississippi State Senate was composed of the following.

[1] James Patton, the lieutenant governor of Mississippi, served ex officio as the president of the Senate.

[1] On January 15, 1821, Thomas Torrence was elected president pro tempore of the Senate.

[2] Beverly R. Grayson was elected Speaker of the House.

[2] Non-representatives Peter A. Vandorn and James R. Whitney were elected to the offices of clerk and door keeper, respectively.