Duty at Ship Island kill April, 1862. Occupation of Forts Wood and Pike, Lake Pontchatrain, May 5. Moved to New Orleans and duty at Camp Parapet until October. Expedition to Lake Pontchatrain July 23-August 2. Operations in District of LaFourche October 24-November 6. Occupation of Donaldsonville October 25. Action at Georgia Landing, near Labadieville, October 27, and at Thibodeauxville October 27. Duty in the District of LaFourche until March, 1863. Expedition to Bayou Teche January 12-14, 1863. Steamer "Cotton" January 14. Operations on Bayou Plaquemine and the Black and Atchafalaya Rivers February 12-28. Operations against Port Hudson March 7-27. Teche Campaign April 11-20. Fort Bisland, near Centreville, April 12-13. Irish Bend April 14. Expedition from Opelousas to Chicotsville and Bayou Boeuff May 1. Expedition to Alexandria on Red River May 5-17. Movement from Alexandria to Port Hudson May 17-24. Siege of Port Hudson May 24-July 8. Assault on Port Hudson June 14. Expedition to Nibletts Bluff May 26-29. Surrender of Port Hudson July 9. Moved to Baton Rouge, La., August 22. Sabine Pass Expedition September 4-11. Moved to Camp Bisland September 15 and duty there until October. Moved to Opelousas, thence to Franklin December --. Designation of Regiment changed to 2nd New Hampshire Cavalry December, 1863.