Organized at Lynnfield August 31 to November 1, 1862. Left State for New York November 5. Sailed for New Orleans, La., on Steamer "North Star" December 4, arriving December 15, Moved to Baton Rouge December 16-17. Attached to Grover's Division, Dept. of the Gulf, to January, 1863. 2nd Brigade, 4th Division, 19th Army Corps, Dept. of the Gulf, to June, 1863.
SERVICE.--Duty at Baton Rouge to March 28, 1863. Expedition to Comite River March 9-10. Moved to Donaldsville March 28. Operations in Western Louisiana April 9-May 14. Teche Campaign April 11-20. Irish Bend April 14. Destruction of salt works near Iberia April 18. Provost duty at Opelousas until May 11. Moved to Barre Landing May 11, thence with trains to Berwick May 21-26. Actions at Franklin and Centreville May 25. Moved to Algiers, thence to Port Hudson May 26-June 3. Designation of Regiment changed to 3rd Massachusetts Cavalry June 17, 1863. (See 3rd Massachusetts Cavalry.)