You may procure his records through a service provided by this message board at:

http://history-sites.com/research/

However, I would not believe this to be your man

Henry Lewis, Private, Company D, 43rd Regiment U. S. Colored Infantry, enlisted as substitute for James S. Williard, September 14, 1864 at Rochester, N. Y., 28th District, for 3 years, mustered out October 20, 1865 at Brownsville, Texas, description on enlistment: 18 year old Farmer, born at Kingston, Canada, black/dark complexion, black eyes, black hair, 5' 3-1/2"

M1994: Compiled Military Service Records of Volunteer Union Soldiers Who Served with the United States Colored Troops: Infantry Organizations, 41st through 46th

....

His widow, Louisa Lewis, filed for Widow's pension December 11, 1906 from the state of Virginia

U.S., Civil War Pension Index: General Index to Pension Files, 1861-1934 about William O Dozier
Name: William O Dozier
[Henry Lewis]
State Filed: Virginia
Widow: Louisa Lewis
Roll Number: T288_130
...................................

UNITED STATES COLORED TROOPS.
43rd REGIMENT INFANTRY.

Organized at Philadelphia, Pa., March 12 to June 3, 1864. Moved to Annapolis, Md.,
April 18. Attached to 1st Brigade, 4th Division, 9th Corps, Army of the Potomac, to
September, 1864. 1st Brigade, 3rd Division, 9th Corps, to December, 1864. 3rd Brigade,
3rd Division, 25th Corps, to January, 1865. 3rd Brigade, 1st Division, 25th Corps and
Dept. of Texas, to October, 1865.

SERVICE.-Campaign from the Rapidan to the James River, Va., May-June, 1864. Guard trains
of the Army of the Potomac through the Wilderness and to Petersburg. Before Petersburg
June 15-19. Siege operations against Petersburg and Richmond June 16, 1864, to April 2,
1865. Mine Explosion, Petersburg, July 30, 1864. Weldon Railroad August 18-21. Poplar
Grove Church September 29-30 and October 1. Boydton Plank Road, Hatcher's Run, October
27-28. On the Bermuda Hundred front and before Richmond till March, 1865. Moved to
Hatcher's Run March 27-28. Appomattox Campaign March 28-April 9. Hatcher's Run March 29-31.
Fall of Petersburg April 2. Pursuit of Lee April 3-9. Appomattox Court House April 9.
Surrender of Lee and his army. Duty at Petersburg and City Point till May 30. Moved to
Texas May 30-June 10. Duty on the Rio Grande opposite Mattamoras, Mexico, till October.
Mustered out October 20, 1865, and discharged at Philadelphia, Pa., November 30, 1865.

Regiment lost during service 3 Officers and 48 Enlisted men killed and mortally wounded
and 188 Enlisted men by disease. Total 239.

Frederick A. Dyer "A Compendium of the War of the Rebellion" vol. 3