Dennis H. Mahan: Professor of engineering at USMA for forty years, and author of several very influential handbooks on military subjects: every West Pointer who fought in the War between the States had been one of his students.

John W. A. Smith: Taught at the Academy for two years but shortly after, was dismissed for ungentlemanly conduct; became a lawyer.

Robert P. Parrott: Ordnance man; taught at the Academy five years, but is best known as the inventor of the "Parrott gun", a system of rifled ordnance that gave the Union a significant advantage in the War between the States.

R. Edward Hazzard: Five years on topographical duty; died two years after resigning.

John King Findlay: Resigned within four years; fifty years as a civilian lawyer and magistrate in Pennsylvania.

Napoleon B. Bennett: Artilleryman, died eight years after graduating.

John N. Dillahunty: Seven years in the Army, on topographical duty; railroad engineer in Mississippi and Louisiana.

Francis L. Jones: Nearly eighteen years in the Army; Artillery, Ordnance, Indian removal, service in the Second Seminole War, and three years sick leave before he resigned — died not long after.

George W. Long: Eleven years in the Army, as an instructor and engineer; civilian engineer of railroad works, hospitals, river improvement; but mostly, a farmer of fruit and vineyards in Illinois.

John M. Fessenden: Seven years in the Army, some of it on loan to the Baltimore and Ohio Railroad; in civilian life, a railroad engineer.

William P. Bainbridge: Artilleryman; served in the Second Seminole War and later Indian hostilities in Florida, Indian removal, frontier posts; fought in the Mexican War.

John M. W. Picton: Eight years in the Artillery; curious training for his civilian career as a medical doctor and professor of obstetrics.

Horatio A. Wilson: Eleven years of routine Army life, with topographical duty and various garrisons; as a civilian, worked on a Cuban railroad, then was a lawyer in upstate New York.

Nicholas Tillinghast: For most of his twelve years in the Army, he taught at the Academy; he continued his teaching career as a civilian.

William G. Williams: Surveyor and engineer, mostly of harbors and river improvements, killed in the Mexican War.

Anthony Drane: Twenty-two years in the Army, mostly on staff duties on the frontier — but an arrest, a suspension for several years with a second chance, a dismissal, and a sad end.

Louis T. Jamison: Dismissed after fourteen years in the Army, mostly on commissary duty, for failure to render proper financial accounts.

William Bickley: Resigned immediately; farmed and kept a hotel in his home State of Kentucky.

Ephraim W. Low: A year after graduating, drowned near his first post.

Joseph Cadle: Dismissed after five years; died five years after that.

Alexander Johnston: Twenty years in the Army, on the northern and western frontiers; fought in the Black Hawk War.

William L. Harris: Served on the western frontier and fought in the Black Hawk War, but after twelve years, was dismissed for conduct unbecoming.

William Bloodgood: Twelve years on the northern frontier, then nearly forty as a farmer.

William W. Eaton: Died within four years of graduating.

Timothy Paige: In the Infantry twelve years, most of them in Louisiana; fought in the Second Seminole War and resigned immediately, to a life of civilian adventure that included South America.

Francis D. Newcomb: Twelve years in garrisons in the Southeast; his civilian career took him to Cuba, where for a quarter of a century he was a press correspondent.

Dixon S. Miles: Infantry­man for nearly forty years; most of it on the western frontier, but fought in the Mexican War and for the Union in the War between the States, where — Cullum doesn't mention it — he presided over what was then the largest ever surrender of American troops (and would remain so until Corregidor in World War II).

Electus Backus: Nearly forty years in the Army, frontier duty and fought in the Second Seminole War, the Mexican War, and the Navajo Expedition; served the Union in the War between the States as a mustering and disbursing officer.

Julius Catlin: Resigned two years after graduating, and died the following year.

Joseph Van Swearingen: Served on the frontier and in the Black Hawk War; killed in the Second Seminole War at the Battle of Okeechobee.

W. Beverhout Thompson: Resigned after 5 years of topographical duty, then made his civilian career in railroad, river and canal engineering.