Charles H. J. Hamlin. First lieutenant and quartermaster, First Rhode Island Light Artillery, Oct. 3, 1861; promoted to captain, Battery H, May 16, 1862; never mustered; resigned, Sept. 27, 1862.
Jeffrey Hazard. Mustered Oct. 14, 1862; second lieutenant, Battery A, First Rhode Island Light Artillery, Oct. 5, 1861; promoted to first lieutenant and regimental adjutant; captain, Battery H, Oct. 1, 1862; resigned, Aug. 17, 1863.
Crawford Allen, Jr. Mustered Oct. 1, 1863; second lieutenant, Battery G, First Rhode Island Light Artillery, Nov. 7, 1861; first lieutenant, Nov. 18, 1862; wounded May 3, 1863, at Fredericksburg; appointed regimental adjutant; acting adjutant-general, Artillery Brigade, Sixth Corps; captain, Battery H, Sept. 30, 1863; brevet major, April 2, 1865, for gallant and meritorious service before Petersburg, Va.; brevet lieutenant-colonel, June 12, 1865; mustered out of service June 28, 1865.
Clement Webster. Mustered Oct. 14, 1862; resigned Feb. 7, 1863.
Charles F. Mason. Mustered Oct. 15, 1862; second lieutenant, Battery A, First R. I. Light Artillery, Dec. 24, 1861; first lieutenant, Oct. 1, 1862; transferred to Battery H, Oct. 15, 1862; subsequently appointed aide on Colonel Tompkins’s staff; resigned April 21, 1864.
George W. Blair. Mustered Feb. 6, 1863; private, First Rhode Island Light Battery, May 2, 1861; discharged Aug. 6, 1861; sergeant, Battery B, First Rhode Island Light Artillery, Aug. 13, 1861; first sergeant, Dec. 2, 1861; discharged Feb. 6, 1863; first lieutenant, Battery I, to date from Feb. 2, 1863; battery never organized; first lieutenant, Battery H, April 23, 1863; resigned April 29, 1864.
Walter M. Knight. Mustered April 8, 1863; quartermaster-sergeant, Battery F, First Rhode Island Light Artillery, Oct. 29, 1861; second lieutenant, Battery H, March 11, 1863; first lieutenant, April 22, 1864; brevet captain, April 2, 1865, for gallant and meritorious services before Petersburg, Va.; mustered out of service, June 28, 1865.
Allen Hoar. Mustered Aug. 24, 1864; private, Battery G, First Rhode Island Light Artillery, Dec. 2, 1861; sergeant, June 9, 1862; wounded slightly Sept. 17, 1862, at battle of Antietam, Va.; second lieutenant, May 14, 1863; first lieutenant, Battery H, Aug. 17, 1864; mustered out of service June 28, 1865.
Kirby Steinhauer. Mustered Oct. 14, 1862; sergeant, Battery G, First Rhode Island Light Artillery, Dec. 2, 1861; second lieutenant, Battery H, June 4, 1862; first lieutenant, Battery D, Feb. 8, 1863; resigned April 19, 1864, on account of disability.
Elmer L. Corthell. Mustered about Oct. 30, 1862; private, Battery A, First Rhode Island Light Artillery, June 6, 1861; transferred to Battery F, Oct. 31, 1861; sergeant, Oct. 31, 1861; second lieutenant, Battery H, Oct. 11, 1862; first lieutenant, Battery G, Nov. 6, 1863; captain, Battery D, Oct. 21, 1864; mustered out of service July 17, 1865.
Walter M. Knight. See first lieutenant.
Benjamin H. Child. Mustered Jan. 8, 1864; private, Battery A, First Rhode Island Light Artillery, June 6, 1861; slightly wounded July 21, 1861, at battle of Bull Run; corporal, July 16, 1863; wounded slightly in head at battle of Antietam, Sept. 17, 1862; sergeant, Sept. 12, 1862; wounded severely in shoulder at battle of Gettysburg, July 2, 1863; second lieutenant, Battery H, Nov. 6, 1863; mustered Jan. 8, 1864; resigned Nov. 23, 1864, on account of wounds.
Samuel G. Colwell. Mustered Nov. 11, 1863; sergeant, Battery H, Oct. 14, 1862; second lieutenant, Nov. 6, 1863; transferred to Battery A, Nov. 14, 1863; resigned April 15, 1864, for physical disability.
Anthony B. Horton. Mustered Dec. 20, 1864; private, Battery B, First Rhode Island Light Artillery, Aug. 13, 1861; corporal, March 25, 1862; sergeant, Dec. 1, 1862; re-enlisted, Feb. 8, 1864; first sergeant, Oct. 3, 1864; discharged, Dec. 19, 1864; second lieutenant, Battery H, to date from Nov. 29, 1864; mustered, Dec. 20, 1864; brevet first lieutenant, April 2, 1865, for gallant and meritorious services before Petersburg, Va.; mustered out of service June 28, 1865.
William B. Westcott. Mustered May 1, 1864; private, Battery G, First Rhode Island Light Artillery, Dec. 2, 1861; sergeant, Dec. 2, 1861; quartermaster-sergeant, June 9, 1862; second-lieutenant, Battery H, April 26, 1864; first lieutenant, Battery B, March 2, 1865; mustered out of service June 12, 1865.
George Lewis. Enlisted as private in Battery E, First Rhode Island Light Artillery, Sept. 24, 1861; mustered Sept. 30, 1861; wounded slightly May 3, 1863, at Chancellorsville, Va.; lance corporal, May 29, 1863; corporal, Sept. 4, 1863; re-enlisted, Feb. 1, 1864; lance sergeant, April 9, 1864; sergeant, Oct. 20, 1864, to date from Oct. 4; second lieutenant, March 31, 1865; assigned to Battery H, May 29, 1865; never reported or mustered as such; mustered out June 14, 1865.
George Messinger. Mustered Oct. 14, 1862; private, Battery A, First Rhode Island Light Artillery, June 6, 1861; transferred and promoted to first sergeant, Battery H, July 8, 1862; appointed company clerk; reënlisted Jan. 4, 1864; mustered out of service June 28, 1865.
Jacob B. Lewis. Mustered as sergeant, Oct. 14, 1862; sergeant, Battery B, First Rhode Island Light Artillery, Aug. 13, 1861; discharged Dec. 11, 1861; first sergeant, Battery H, Oct. 14, 1862; mustered out, June 28, 1865.
Charles E. Bonn. Mustered as corporal, Oct. 14, 1862; sergeant; first sergeant; second lieutenant, Battery D, First Rhode Island Light Artillery, April 26, 1864; first lieutenant, April 3, 1865; breveted captain; mustered out of service July 17, 1865.
John Evans. Mustered as private, Jan. 6, 1863; first sergeant; mustered out of service June 28, 1865.
John P. Campbell, 1st. Mustered as private, Oct. 14, 1862; corporal; sergeant; first sergeant in December, 1864; mustered out as such June 28, 1865.