The Koenig name was originally attached to one of the first structures built on the South 40, a men's residence hall that was open for occupancy for the 1959 fall semester, and which was formally dedicated on April 28, 1962. The architects were Hellmuth, Obata, and Kassabaum, and the general contractor was the I.E. Millstone Construction Company. This building was replaced in 2005 with a completely modern facility, the Edwin C. Koenig House, which is part of the Liggett/Koenig Residential College.
Edwin C. Koenig joined the St. Louis Yacht Club at the age of 15, the youngest member at the time. He later climbed the ranks to the position of Commodore of the Club. He promoted river carnivals and regattas, such as the 1909 parade of more than 600 boats down a six-mile stretch of the Mississippi, involving just about every conceivable kind of boat, in honor of the 100th anniversary of the incorporation of the Town of St. Louis. Koenig set a number of boating records and sponsored many St. Louis-to-New Orleans races. He later operated pleasure excursions on the Mississippi. In his will, he left $325,000 to Washington University, Saint Louis University, and a couple of hospitals.