1st Regiment Heavy Artillery
Organized at Washington, D. C., from 4th Conn. Infantry, January 2, 1862. Attached to Military District of Washington to
April, 1862. Siege artillery, Army Potomac, to May, 1862. 3rd Brigade, 2nd Division, 5th Army Corps, Army Potomac, to July,
1862. Siege artillery, Army Potomac, to August, 1862. Artillery defences Alexandria Military District of Washington, to February,
1863. Artillery defences of Alexandria, 22nd Army Corps, to April, 1863. 2nd Brigade, DeRussy's Division, defences south of
the Potomac, 22nd Army Corps, to May, 1863. 3rd Brigade, DeRussy's Dlvision, 22nd Corps, to December, 1863. 2nd Brigade, DeRussy's
Division, 22nd Army Corps, to March, 1864. 4th Brigade, DeRussy's Division, 22nd Army Corps, to May, 1864. (Cos. "B" and "M"
attached to Artillery Reserve, Army Potomac, October, 1862, to January, 1864.) Point of Rocks, Va., Dept., of Virginia and
North Carolina to June, 1864. Siege artillery, Dept. of Virginia and North Carolina in the field, and siege artillery, Army
Potomac, to May, 1865; Siege artillery, Dept. of Virginia, to July, 1865. 4th Brigade, DeRussy's Division, 22nd Army Corps,
Dept. of Washington, to August, 1865. 3rd Brigade, Dept. of Washington, to September, 1865.
SERVICE.-Duty at Fort
Richardson, defences of Washington, D. C., till April, 1862. Ordered to the Peninsula, Va., in charge of siege train Army
Potomac, April 2. Siege of Yorktown April 12-May 4. Battle of Hanover C. H. May 27. Operations about Hanover May 27-29. Seven days before Richmond June 25-July 1. Gaines' Mill June 27. Malvern Hill July 1. At Harrison's Landing till August 15. Moved to Alexandria, Va., August 16-27. Duty in the defences of Washington,
D. C., till May, 1864, as garrison at Fort Richardson. Cos. "B" and "M" detached with Army Potomac, participating in battle
of Fredericksburg, Va., Dec. 12-15. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5. Stafford Heights June 12. Battle of Gettysburg, Pa., July 1-3. Bristoe Campaign October 9-22. Advance to line of the Rappahannock November 7-8. Brandy Station November
8. Mine Run Campaign November 26-December 2. Rejoined regiment in defences of Washington January, 1864. Regiment ordered to Bermuda Hundred,
Va., May 13, 1864. Engaged in fatigue duty and as garrison for batteries and forts on the Bermuda front and lines before Petersburg
during siege operations against Petersburg and Richmond, May, 1864, to April, 1865. Occupy Fort Converse, Redoubt Dutton,
Batteries Spofford, Anderson, Pruyn and Perry on the Bermuda front, and Forts Rice, Morton, Sedgewick and McGilvrey, and Batteries
1, 2, 3, 4, 5, 9, 10, 11, 12, 14, 15, 17, 18, 20, Burpee, Drake and Sawyer, on the Petersburg front, and at Dutch Gap, north
of the James River. Assaults on Fort Dutton June 2 and 21, 1864 (Co. "L"). Attacks on the lines May 18, 19, 20, 21, 25, 27,
30, 31, June 1, 2, 5, 9, 18, 20 and 23. Mine explosion July 30, August 25, November 17, 18 and 28, 1864. Repulse of rebel fleet at Fort Brady on James River January 23-24, 1865.
Expedition to Fort Fisher, N. C., January 3-15, 1865 (Cos. "B," "G," "L"). Capture of Fort Fisher January 15 (Cos. "B," "G," "L"). Assaults on and fall of Petersburg, Va., April 2, 1865. Duty in the Dept. of Va. till July
11. Moved to Washington, D.C. and duty in the defences of that city till September. Mustered out September 25, 1865.
lost during service 2 Officers and 49 Enlisted men killed and mortally wounded and 4 Officers and 172 Enlisted men by disease.
4th REGIMENT INFANTRY.
Organized at Hartford
May 21, 1861. Left State for Washington, D.C., June 10. Attached to Abercrombie's 6th Brigade, 2nd Division, Dept. of Pennsylvania.
to August, 1861. 2nd Brigade, Banks' Division, Army Potomac, to December, 1861. Dcfences of Washington to January, 1862.
at Chambersburg, Pa., and at Hagerstown. Md., till July 4, l861, and at Williamsport till August 16. At Frederick, Md., till
September 5. Moved to Darnestown September 5, thence to Fort Richardson. Defences of Washington, D. C., and duty there till
January, 1862. Designation of regiment changed to 1st Conn. Heavy Artillery January 2, 1862. (See 1st Heavy Artillery.)
3rd Regiment, Connecticut Infantry
Organized at New Haven and mustered in May 14, 1861. Left State for Washington, D. C., May 19. Attached to Mansfield's
command, Dept. of Washington, to June, 1861. Key's 1st Brigade, Tyler's 1st Division, McDowell's Army of Northeastern Virginia
to August, 1861.
SERVICE.-Duty at Camp Corcoran, defences of Washington, D.C., till June 1, 1861. Advance to Vienna
and Falls Church, Va., June 1-3, and picket duty there till July 16. Advance to Manassas, Va., July 16-21. Occupation of Fairfax
C.H. July 17. Battle of Bull Run, Va., July 21. Mustered out August 12, 1861.