On June 1, 1898, Dunford and Widtsoe were married in the Salt Lake Temple[2] and she then went to Germany with him while he studied chemistry at the University of Göttingen.
[1] As a teacher at Brigham Young University, Widtsoe was appointed the head of the Department of Domestic Sciences in 1897.
She created new classes and course materials, incorporating what she had learned from her studies in the East, and emphasizing farm science.
She was a regular contributor to many LDS Church periodicals, like the Young Woman's Journal, The Relief Society Magazine, and The Improvement Era.
[1] Widtsoe was the co-author with her husband of The Word of Wisdom: A Modern Interpretation[6] In addition, she was involved in writing The Life Story of Brigham Young with her mother.
When her family moved to Logan, Utah in 1900, Widtsoe sought to improve the lives of farmers' wives.
She was instrumental in the passing of the Smoot Bill, which provided funds to states for research in home economics.
[1] The Joseph F. Smith Family Living Center at BYU had a room named for Leah Widtsoe.
[9] Utah State University has a graduate scholarship in its Family, Consumer and Human Development program named after her.