Seth Williamson, age 18, was enlisted as Private on April 2nd, 1862 in Captain McLean’s Company, Company H (Union Rebels), 6th Regiment Florida Infantry by J. J. Finley at Mount Vernon Arsenal, Florida, for a period of 3 years or the war. (Company Muster Roll for April 2nd to April 21st, 1862).

He is reported absent on Company Muster Roll for April 1st to July 1st, 1862. This Roll documents him absent on sick furlough.

He is reported absent on the Company Muster Roll for June 30th through November 12th, 1862. This Roll documents him absent without leave in Florida since July 8th, 1862.

He is reported absent on the Company Muster Roll for November 12th, 1862 through February 11th, 1863. This Roll documents him absent without leave in Florida since July 8th, 1862.

He is reported present and due pay from enlistment on the Company Muster Roll for February 11th,through April 17th, 1863. This roll documents him returning to Company March 2nd, 1863; absence excused for sickness.

He is reported present on the Company Muster Roll for April 17th through April 30th, 1863.

He is reported present and due commutation from enlistment on the Company Muster Roll for April 30th through July 9th, 1863.

He is reported absent on the Company Muster Roll for July 9th through October 31st, 1863. This roll documents him being absent sick at hospital.

He is reported absent on the Company Muster Roll for November and December, 1863. This roll documents him being absent sick at hospital.

He is reported absent on the Company Muster Roll for December 31st, 1863, through February 29th, 1864. This roll documents him being absent sick in Florida since September 3rd, 1863.