Welch, who taught at what later became Iowa State University, developed the first home economics classes given for college credit.
[1] Welch created the Department of Domestic Economy at Iowa State and these classes were the first on the subject to award college credit.
[4] At Iowa State, she taught classes including botany, chemistry, geology, physics, and physiology.
[1] At the end of December of 1923, Welch had a severe stroke and three days later on January 2, died in her home in Pasadena, California.
[1] To honor all of Mary Beaumont Welch's contributions to the school and community, there are places surrounding campus that are named after her.