Fourth Brigade
| Parent Unit: First Division | II Corps | Army of the Potomac | Union Army1 | |
| Commander: | |
| Lt. Colonel John Hastings (June 19-21, 1864 & June 22, 1864 forward)2 | Image Needed |
| Colonel John Fraser (assigned June 21, 1864 and captured June 22, 1864)3 | 4 |
| Strength: | |
| Units:5
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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 ↩
- 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 ↩
- Stewart, Robert L. History of the One hundred and Fortieth Regiment Pennsylvania Volunteers (Franklin Bindery, 1912), after page 20 ↩
- 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 ↩
