Mary received a Bachelor of Fine Art degree from the University of Oklahoma in 1985. She then attended OSUIT and in 1988, received her degree in Graphic Design. Mary then returned to OSUIT in December of 1989 to teach Graphic Design until 2004.

While teaching at OSUIT Mary also operates Trammell Creative Services. She serves a diverse client base with advertising and promotional materials. Her work includes logo and brand development, conceptualizing and designing magazine and newspaper advertising, copywriting, brochures, signage and more. Types of clients range from catering, real estate, surgical programs and medical products, to gift books, stationery, and ATV trail guides, just to name a few.

Mary returned to OSUIT in January 2011 as a full-time instructor. She has worked in the graphic design industry in Tulsa for the last 20 years.