Morenus taught mathematics and Latin at a school in
Watertown, New York and at
Poughkeepsie High School after her master's degree. She was head of the mathematics department for much of that time. While at the school she was prominent in campus events, as a chorister, photographer, and play director. Her horse, October or "Toby", was a familiar figure on campus, and Morenus would lead ten-day rides for students over spring breaks. Morenus was a charter member of the
Mathematical Association of America, belonged to the
Virginia Academy of Science, and was active in the
American Association of University Women (AAUW). She received an
Anna Brackett Fellowship by the AAUW in 1927, to study at
Cambridge. After her retirement from Sweet Briar College in 1946, she taught briefly at Connecticut College for Women, and spent her winters in Florida. == Personal life ==