Rollin B. Truesdell (also Truesdall) was born on December 20, 1839 in Lawsville Center, Pennsylvania. At age 21 Truesdell enlisted on May 8, 1861 at Binghamton to serve for two years. He mustered into Company F of the 27th New York Volunteer Infantry Regiment on May 21, 1861. He was promoted to corporal on November 1, 1861 and sergeant on February 20, 1863. He mustered out with the company on May 31, 1863 at Elmira, New York. Following the war Truesdell owned a wholesale grocer, Newell and Truesdell Company, in Binghamton, New York. Truesdell would pass away on June 5, 1914.
27th New York Volunteer Infantry Regiment
Overview: Organized at Elmira, N. Y., May 21, 1861. Mustered in June 15, 1861, and left State for Washington, D. C., July 10. Advance on Manassas, Va., July 16-21, 1861. Battle of Bull Run, Va., July 21. Duty in the Defences of Washington, D. C., till March, 1862. Expedition to Pohick Church October 3, 1861. Advance on Manassas, Va., March 10-15, 1862. McDowell's advance on Fredricksburg April 4-12. Ordered to the Peninsula, Virginia, April 22. Siege of Yorktown, Va., April 24-May 4, on transports. West Point May 7-8. Near Mechanicsville May 20. Seven days before Richmond June 25-July 1. Gaines' Mill and Chickahominy June 27. White Oak Swamp and Glendale June 30. Malvern Hill July 1. At Harrison's Landing till August 16. Movement to Fortress Monroe, thence to Centreville August 16-28. In works at Centreville August 28-31, and cover Pope's retreat to Fairfax Court House September 1. Maryland Campaign September 6-22. Crampton's Gap, South Mountain, September 14. Battle of Antietam September 16-17. Duty in Maryland till October 29. Movement to Falmouth, Va., October 29-November 19. Battle of Fredericksburg, Va., December 12-15. "Mud March" January 20-24, 1863. At Falmouth till April. Chancellorsville Campaign April 27-May 6. Operations about Franklin's Crossing April 29-May 2. Maryes Heights, Fredericksburg, May 3. Salem Heights May 3-4. Banks' Ford May 4. Mustered out May 31, 1863, expiration of term. Three years' men transferred to 121st Regiment New York Infantry.
The 27th NY Inf Regiment lost during service 2 Officers and 72 Enlisted men killed and mortally wounded and 2 Officers and 70 Enlisted men by disease. Total 146.