Johnson taught at
Montana State University Billings, from 1949 to 1961 and served as department head from 1954 to 1961. As a teacher of art in Montana she taught Modernism, often having to introduce her students to that genre. "She felt it was a requirement of her job that she push us and lead us to look in other directions that were not traditional, and she did it without saying a mean word about [Charles M.] Russell or any other traditional painter," said Donna Loos, one of her students. She received the Montana Governor's Award for the Arts in 1983 and the Distinguished Service Award from Eastern Montana College (now Montana State University, Billings) in 1984. Her most famous student, Theodore Waddell, said three weeks after meeting her, "I decided I did not want to be alive and not make art." The Yellowstone Art Museum published an anthology of her work and life in 2015. The
Yellowstone Art Museum, Billings, Montana, owns 827 Johnson-related works in its permanent collection, the majority of which were donated by Johnson. ==Education==