Union soldiers before battle. National Archives
Here is an incomplete list of the men from the Jeffrey Ferris lineage who died while serving during the Civil War. Note that two of these men died in Confederate prison camps.
| First | Last | Birth date | Death date | Death place | Death cause | |
| Charles W | Ferris | Jun. 13 1844 | Apr. 20 1864 | North Carolina | KIA | |
| Levi L | Ferris | Mar. 11 1840 | May. 31 1862 | Henrico, Virginia | KIA | |
| Henry | Ferris | Apr. 14 1838 | Dec. 25 1861 | District of Columbia | UNK | |
| Augustus Harvey | Ferris | Apr. 17 1837 | Jan. 21 1865 | Salisbury, North Carolina | died as POW | |
| Edley Byron | Ferris | Mar. 4 1840 | Jul. 5 1864 | KIA | ||
| Lt. | Joel E | Ferris | 1813 | May. 16 1863 | Vicksburg, Mississippi | KIA |
| George Washington | Ferris | Sep. 3 1827 | 1864 | died after d/c from injuries | ||
| Caleb G | Ferris | Jul. 18 1824 | Oct. 19 1864 | died as POW | ||
| William Alexander | Ferris | Jun. 4 1829 | Jan. 26 1863 | Collierville, Tennessee | illness | |
| Edward Hixon | Ferris | Oct. 14 1837 | Sep. 1 1863 | Vicksburg, Mississippi | KIA | |
| David F | Ferris | Jul. 1841 | Mar. 31 1865 | Five Forks, Virginia | disease | |
| Alexander | Ferris | Dec. 1842 | May. 16 1864 | Hospital – Point Lookout MD | KIA gunshot wounds | |
| Benjamin | Ferris | 1841 | Feb. 26 1864 | UNK | ||
| Sgt. | Andrew | Ferris | 1838 | Aug. 20 1864 | Lovejoy
, Georgia |
KIA |
| George W. | Ferris | 1830 | Jun. 17 1864 | Virginia | KIA wounds | |
| Capt. | Newton S. | Ferris | Sep. 9 1831 | Jul. 30 1864 | Petersburg, Virginia | KIA |
| Capt. | Frank B | Ferris | Apr. 18 1862 | Shiloh, Tennessee | KIA |