Cyrus Ballou Comstock (February 3, 1831 – May 29, 1910) was a career officer in the
Regular Army of the United States. After graduating from the
United States Military Academy at West Point in 1855, Comstock served with the
Army Corps of Engineers. At the beginning of the
American Civil War, he assisted with the fortification of
Washington, D.C. In 1862, he was transferred to the field, eventually becoming chief engineer of the
Army of the Potomac. In 1863 during the
Siege of Vicksburg, he served as the chief engineer of the
Army of the Tennessee.
[1]
The most significant phase of Comstock's career began in November 1864 when he was appointed to the staff of
Lt. Gen. Ulysses S. Grant, becoming Grant's senior
aide-de-camp. In 1865, Comstock was appointed the senior engineer in the assault on
Fort Fisher, North Carolina, and the assault on
Mobile, Alabama, both of which were successful. By the end of the war, Comstock had earned the awards of the honorary grades of
brevet major general in the
Volunteer Army and brevet
brigadier general in the
Regular Army.
[2]
After the close of the war, Comstock served on the military commission for the trial of the conspirators in the assassination of President
Abraham Lincoln. He was dismissed from the commission for his criticism of the proceedings.
[3] Later Comstock continued with the Army Corps of Engineers, took part in several engineering projects, and served on the
Mississippi River Commission, of which he was president.
[2]