Both were professors at Southeast Missouri State University. Dr. Mary Ann Kellerman developed the Interior Design Program at Southeast Missouri State University and taught the program for twenty-six years.
She has worked professionally as an interior designer since 1974, and has owned an interior design firm since 1976.
Dr. Bert Kellerman was in the College of Business and served as Chair of the Marketing Department from its inception in 1976 to 1990. In 1994, he became the Associate Dean in the Harrison College of Business.
After successful careers in higher education, Mary Ann and Bert Kellerman, at the urging of neighbors, friends and colleagues, created the Kellerman Foundation for Historic Preservation as a means to leave a legacy of historic preservation for southeast Missouri.
The Kellermans have restored both commercial and residential structures in the area. They have also received local and state awards for their preservation efforts.