Dedicated in October 1924, Charles Duncker Jr. Hall housed the School of Commerce and Finance.
Duncker Hall is one of three buildings that housed the School of Business over the years. The other two are Simon Hall and the former Prince Hall.
This hall was a gift to the university by Charles H. Duncker Sr., in memory of his son, Charles H. Duncker Jr., who lost his life in France during World War I. Duncker Jr. graduated with a Bachelor of Arts degree from Washington University in 1914 with Phi Beta Kappa honors (the Washington University chapter of Phi Beta Kappa was chartered in 1913, which made Duncker part of the first group of students to be so honored), was a member of the track team, editor of the yearbook, and a member of the junior and senior honorary societies. Charles H. Duncker Sr. was President of Trorlicht & Duncker, one of the oldest carpet houses in St. Louis.