I have the muster roll for Captain W. Chamberlin. Company 1 (Warren's) Florida Mounted Militia. He mustered in at Ft. Harlee on November 9, 1839 and out on May 9, 1840. The unit was called Capt. Chamberli's Co., 1 Reg't (Warren's) Fla. Mtd. Mil. (1839-40). The entire company was mustered in on that date by Lt. J.W. Anderson 2nd Infantry.
Muster Roll of Capt. W. Chamberlin's Company of the 1st Regiment of Florida Mounted Volunteers commanded by Col.John Warren ordered into service of the United States by order of Brig. General Taylor from the 9th day of November 1839 to the 9th day of May 1840.