Organized at Lowell as Richardson's Light Guard; an Independent Infantry Company and mustered in May 21, 1861. Left State for Fortress Monroe, Va., May 22, and garrison duty there as Infantry until December 25, 1861. Detached on Light Artillery duty December 25, 1861, and duty at Fort Monroe until May, 1862. Designated 7th Massachusetts Battery March 17. 1862. Attached to Dept. of Virginia to June, 1862. Newport News, Va., Dept. of Virginia, to July, 1862. Yorktown, Va., Dept. of Virginia, to September, 1862. Artillery Division at Suffolk, 7th Army Corps, Dept. of Virginia, to June, 1863. Artillery, 1st Division, 7th Army Corps, Dept. of Virginia, to July, 1863. Camp Barry, 22nd Army Corps, Dept. of Washington, to January, 1864. Artillery, 2nd Division, 19th Array Corps, Dept. of the Gulf, to November, 1864. Reserve Artillery. Reserve Corps, Military Division West Mississippi, to February, 1865. Artillery, 1st Division, 13th Army Corps, Military Division West Mississippi, to April, 1865. Artillery, 1st Division. U.S. C. T., Military Division West Mississippi, to July, 1865. Dept. of Texas · to November, 1865.
SERVICE.--Occupation of Norfolk and Portsmouth, Va., May 10, 1862. Duty at Fort Monroe May 13 to June 19, and at Newport News, Va., until July 25. Moved to Yorktown, Va., and duty there until September 29. Moved to Suffolk September 29-October 2, and duty there until June, 1863. Expedition from Suffolk December 1-3, 1862. Action on the Blackwater, near Franklin, December 2. Action at Deserted House, Va., January 30, 1863, and at Franklin on the Blackwater March 17. Siege of Suffolk April 11-May 4. Actions at Blackwater April 12 and 14. Somerton Road April 15. Providence Church Road May 3. Siege of Suffolk raised May 4. Expedition to Carrsville May 13-17. Holland House May 15-16. At Portsmouth until June. Dix's Peninsula Campaign June 24-July 7. Expedition from White House to South Anna River July 1-7. South Anna Bridge July 4. March to Fort Monroe July 5-14, thence to Portsmouth July 15. Moved to Washington, D.C., July 20-22, and duty at Camp Marshall until August 18. Moved to Alexandria, thence to New York August 18-21. Duty in New York during draft troubles until September 11. Moved to Washington, D.C., September 11, and duty at Camp Barry until January 24, 1864. Moved to Baltimore, Md., thence sailed on Steamer "Arago" to New Orleans January 24-February 5. At Apollo Stables until March 18. Moved to Algiers, thence to Alexandria, La., March 19-31. Red River Campaign April 1-May 22. (i Section stationed at Pineville April 29 to May 11.) Retreat to Morganza May 13-20. Mansura May 16. At Morganza until July 13. Expedition to Atchafalaya River May 30-June 6. Moved to White River, Ark.; thence to St. Charles July 13-23. Moved to Morganza August 6-13. Expedition to White River and St. Charles September 3-11. Duty there until October 23. Moved to Duvall's Bluff October 23-24 and duty there until January 10, 1865. Moved to Kennersville, La., January 10-15; thence to Dauphin Island, Ala., February 9-11. Campaign against Mobile and its Defenses March 17-April 12. Siege of Spanish Fort and Fort Blakely March 26-April 9. Storming of Fort Blakely April 9. Moved from Mobile to Selma, Ala., April 20-27; thence to Montgomery April 27-30. Moved to Mobile May 9-16 and duty there until June 30. Moved to Galveston, Texas, June 30-July 3, thence to Houston July 9, and duty there until October. Moved to Boston, Mass., via Galveston, Texas, New Orleans, Port Royal, S.C., and New York, October 1-November 3. Mustered out November !0, 1865.
Battery lost during service 3 Enlisted men killed and mortally wounded and 1 Officer and 36 Enlisted men by disease. Total 40.