Organized at Washington, D. C., from 50th New York Infantry October 22, 1861. Attached to Woodbury's Brigade, Army of the Potomac, to April, 1862, and to Engineer Brigade, Army of the Potomac, to June, 1865.
SERVICE:
Duty at Alexandria, Va., till March, 1862, and at Washington, D. C., till March 18. Moved with Army of the Potomac to the Virginia Peninsula. Siege of Yorktown April 5-May 4. Advance up the Peninsula and constructing bridges on the Chickahominy River May. Battle of Fair Oaks, Seven Pines, May 31-June 1. Seven days before Richmond June 25-July 1. Battle of Seven Pines June 27. White Oak Swamp and Charles City Cross Roads June 30. Malvern Hill July 1. At Harrison's Landing till August 16. Moved to Washington, D. C., August 16-22. Maryland Campaign September-October. Operating at and about Harper's Ferry, W. Va., and Berlin, Md., during and after the battle of Antietam. Threw two pontoon bridges over the Potomac River at Berlin, Md., for the crossing of the Army of the Potomac in their pursuit of Lee from Antietam. Rappahannock Campaign November, 1862, to June, 1863. Battle of Fredericksburg, Va., December 12-15. "Mud March" January 20-24, 1863. Chancellorsville Campaign April 27-May 6. Operations at Franklin's Crossing April 29-May 2. Maryes Heights, Fredericksburg, May 3. Salem Heights May 3-4. Banks' Ford May 4. Operations at Deep Run Ravine June 5-13. Gettysburg (Pa.) Campaign June 13-July 24. Battle of Gettysburg, Pa., July 1-4. Bristoe Campaign October 9-22. Advance to line of the Rappahannock November 7-8. Mine Run Campaign November 26-December 2. Campaign from the Rapidan to the James River May 3-June 15, 1864. Laid all bridges for Army of the Potomac during the Campaign. Battles of the Wilderness May 5-7; Spottsylvania Court House May 8-21. To expedite the transportation of wounded three Companies made a forced march to Fredericksburg on May 10, starting at 11:30 a. m. Built bridge over the Rappahannock at Fredericksburg Lower Crossing, having it completed and ready for use at 4:30 p. m., having marched 8 miles and built bridge 420 feet long in 5 hours. North Anna River May 23-26. On line of the Pamunkey May 26-28. On line of the Totopotomoy May 28-31. About Cold Harbor June 1-12. Crossing of James River June 15. Before Petersburg June 16-18. Siege operations against Petersburg and Richmond June, 1864, to April, 1865. Jerusalem Plank Road June 22-23, 1864. Demonstration on north side of James River July 27-29. Deep Bottom July 27-28. Hatcher's Run February 5-7, 1865. Appomattox Campaign March 28-April 9. Fall of Petersburg April 2. Appomattox Court House April 9. Surrender of Lee and his army. (Co. "I" march to Danville with 6th Army Corps April 23-27.) Mustered out at Washington, D. C., June 13, 1865.
Regiment lost during service 1 Officer and 19 Enlisted men killed and mortally wounded and 1 Officer and 206 Enlisted men by disease. Total 227.
