Ranald Slidell Mackenzie Edit Profile
Graduated from the United States Military Academy, 1862.
Captain, commander; general United States Army. Major general United States Volunteers. General United States Volunteers, from 1865.
Served as First lieutenant corps engrs. Army of Potomac, 1863, participated in Maryland. campaign, Rappahannock campaign (battles of Fredericksburg, Chancellorsville, 1863), Pennsylvania campaign (Battle of Gettysburg), Rapidan campaign, 1863-1864.