Which of the following was NOT one of the five most recent Sergeants Major of the Army?

The choice indicating "SGM John W. Smith" is the correct response because he is not listed among the five most recent Sergeants Major of the Army. The five most recent SGMAs have played significant roles in shaping the Army's policies and direction over the years, and their leadership is well documented.

In contrast, Kenneth O. Preston, William O. Wooldridge, and Raymond F. Chandler III are all notable individuals who have held the position of Sergeant Major of the Army and are recognized for their contributions to the Army during their tenures. This distinction highlights the importance of being familiar with the leadership lineage within the Army, particularly for those preparing for promotion boards or other leadership roles.