First Brigade
| Parent Unit: Second Division | II Corps | Army of the Potomac | Union Army1 | |
| Commander: | |
| Brigadier General Byron R. Pierce (June 19-22, 1864)2 | 3 |
| Major William F. Smith (June 22-27, 1864)4 | Commander Image Needed |
| Lieutenant Colonel Francis E. Pierce (June 27, 1864 forward)5 | 6 |
| Strength: | |
| Units:7
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| Bibliography: | |
| Siege of Petersburg Documents Which Mention This Unit: | |
| Sources: | |
- The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), pages 219-220 ↩
- The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), page 220 ↩
- Byron Root Pierce, Page 1. Generals and Brevets Web Site. Accessed August 29, 2011. ↩
- The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), page 220: Note: This is NOT Major General William F. “Baldy” Smith, who commanded the XVIII Corps, Army of the James during this time frame. ↩
- The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), page 220 ↩
- RG98S. CIVIL WAR PHOTOS, BOX 59.52. Maj. Francis E. Pierce, 108th Regiment, New York State Volunteer Infantry. United States Army Military History Institute ↩
- The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), page 220 ↩

