In those days, colleges principally turned out either: 1) preachers, 2) doctors or 3) lawyers. In fact, many colleges were affiliated with one of the prevailing Christian denominations. Emphasis was placed on classical Greek and Latin studies. Evidently not many ministers of the gospel found army life appealing. Doctors often became army surgeons. That leaves lawyers to fill the remaining officer ranks, especially at the senior levels, of a greatly expanded army of citizen-soldiers that did not have enough military graduates to meet the demand.