Left Maine for New Orleans, La., January 31, arriving February 16, 1864. Moved to Brashear City, La., February 20, 1864; then to Franklin February 21. Red River Campaign March 10-May 22. Advance from Franklin to Alexandria March 14–26. Battle of Sabine Cross Roads April 8. Battle of Pleasant Hill April 9. Monett's Bluff, Cane River Crossing, April 23. At Alexandria April 25-May 13. Construction of dam at Alexandria April 30-May 10. Retreat to Morganza May 13–22. Mansura May 16. Duty at Morganza until July 2. Absorbed 10th Maine Battalion May 30. Moved to New Orleans, then to Washington, D.C., July 2–13. Snicker's Gap Expedition July 14–23. Sheridan's Shenandoah Valley Campaign August 7-November 28. Berryville August 21 and September 3–4. Battle of Opequon, Winchester, September 19. Fisher's Hill September 22. Battle of Cedar Creek October 19. Duty near Middletown until November 9. At Newton until December 30, and at Stevenson's Depot until April 1865. Moved to Washington, D.C., and duty there April 22 to June 1. While transferring by rail from the Shenandoah Valley to Washington, D.C., shortly after changing tracks at the Relay House, the regiment's train was pulled onto a siding to allow Lincoln's funeral train to pass. Provost duty during the Grand Review of the Armies May 23–24. Moved to Savannah, Ga., June 1–5, then to Georgetown, S.C., June 14–15. Duty at various points in South Carolina, with headquarters at Darlington, until March 1866. Moved to Hilton Head, S.C., March 27, and duty there until June 21. (A detachment at Helena and Seabrook Islands.)