Robert Messersmith, Sr., AIA, created the master plan that has guided all phases of construction for the Museum at Texas Tech University. The original part of the Museum, completed in 1970, and its two additions, the Natural Science Research Laboratory and the Helen DeVitt Jones Auditorium and Sculpture Garden, were all designed by MWM.

The Helen DeVitt Jones Auditorium and Sculpture Garden is a 48,000 square foot addition to the Museum that was complete in 2001. Helen DeVitt Jones, a patron of the
Museum, believed that the Museum should be a cultural hub for the community. Following her death, the CH Foundation, Inc. provided the funds to construct the much needed auditorium and sculpture court of public programs and events. This addition also houses a catering kitchen, restrooms, a green room/classroom, and a backstage area with dressing rooms, and a special events gallery. In 2005, MWM completed a 17,000 square foot addition to the Natural Science Research Laboratory. This addition houses research labs, specimen storage facilities, offices, and a library space.