Two US Army men, one cadet, wearing post WWI issue high collar jacket with brim cap and high laced leather boots. The second, an officer, probably OAC Staff personnel with later rolled collar (1926 issue) dress jacket and Sam Browne belt. This was a common theme in military photographs depicting the tallest and shortest men in a particular unit.
Wide angle photo of OAC Cadet band in formation on parade field, probably Inspection Day in mid 1920s. Band in marching formation with instruments. Double exposure trick photography changing perspective. Band in foreground is smaller than the band in the background.