History of the Drill Sergeant is a U.S. Army Drill Sergeant article that also includes the history of the campaign hat and ID badge.

History Chapter 4: 1964-1967 and Beyond is a 2014 US Army Garrison page from the fourth chapter of a larger text.

History of the Sergeant Major is an NCO Museum Staff article written by L.R. Arms about the origins of the Sergeant Major.

Historical Overview of the ATRADOC, Chapter 7 is the seventh chapter of a larger text. This chapter examines the history of TRADOC.

Here’s How Army Ranks Became the Way They Are is a lightly faded 1967 article explaining the rank system and history.

Historic Towns of the Connecticut River Valley is a 1906 Bobson & Adee published book written by George S. Roberts.

Henry Caro NCO Academy Mission Statement is a 2018 The Backbone article about the intended result of the Henry Caro NCOA.

His Excellency General Washington’s Last Legacy is a 1783 letter sent to George Washington by Charles Thomson.

Grade/Skill Dichotomy in Enlisted MOS, To Include NCO/Specialist System is a 1969 ARMY paper about skill level.