|1858||1860||Lt. Col.||Canby, Edward R.S.||1015|
|1860||1860||Capt.||Gatlin, Richard C.||696|
|1860||1861||Capt.||Gardner, Franklin||1183||Abandoned post to join the Confederate Army, for which he was dismissed by the Federal Army on May 7, 1861.|
|1869-05-28||1870-05||Lt. Col.||Gilbert, Charles C.||1292|
|1873-05-14||1876-08-30||Col.||Flint, Franklin F.||1093|
|Dates are formatted in yyyy-mm-dd to sort correctly.|
The Cullum Number is the graduation order from the United States Military Academy by year and class rank and links to a page for the officer on the website version of the Cullum Register. Listings without a Cullum Number indicate that the person was not a graduate of the United States Military Academy.