General Douglas MacArthur, who entered West Point in 1899, noted in his memoirs that hazing was not only present, but had been conducted "with methods that were violent and uncontrolled." In 1900, he was one of several cadets called to testify as a witness in a Congressional court of inquiry ordered by President McKinley to investigate both a specific hazing incident and the extent to which plebes were subject to hazing.
See Accepted Form of Hazing or Leader Development Tool? The History and Evolution of Fourth Class Knowledge by Captain Christopher H. Engen.
(Thanks to Curt Howland, "Son of a US Army Air Force Colonel, who stood up for what he thought was right, and taught his son to do the same.")