For a century American merchant officers learned the trade on the job, until the states put boys aboard schoolships. The episode follows the founding of the maritime academies, from New York's 1874 nautical school aboard the sloop St. Mary's to the freshwater Great Lakes academy, and what it meant to professionalize a working-class trade.
Sources say little about racial access or the first non-white cadets, so that question is under-documented rather than answered. Which academy is the oldest turns on how continuous operation and name changes are counted, and Pennsylvania's 1947 closure rests on secondary accounts.