A 2008 dissertation by Richard Shawn Faulkner examining combat leadership in the American Expeditionary Forces.

A file detailing the history of the Army of the United States and the establishment of ETO training, particularly within Europe.

A 1969 progress report on the Enlisted Grade Structure Management project designed to improve centralized management.

A 1971 file on the Noncommissioned Officer education system, Professional Development, Service Schools, and Troop Schools.

The US Army Noncommissioned Officer Corps: A Selected Bibliography is a 1998 The Information Management Support Center list of sources.

The Noncommissioned Officers of the US Army-Their Changing Role and Status from 1775 to 1783 is a 1983 article.

Noncommissioned Officers Bibliography is a 2020 Ibiblio list of sources related to the history and training of NCOs.

Dan Elder Collection of Key Events Relating to ETO Training is a 2016 timeline written by Dan Elder about Army training.