|Katharine Gridley in 1927|
Katharine worked as an artist, and as a newspaper illustrator and occasional writer. Cline's first novel, God Head (1925), is dedicated to her, and a sketch of Cline by Katharine (reproduced at right) appears alongside a review by Professor Warren Bower of the University of Michigan of God Head in The Lansing State Journal c. 19 March 1926.
After leaving Cline, Katharine returned to the Detroit area, where many members of her family lived, and in the 1930s she married a man surnamed Brown, but this marriage did not last. Katharine moved back to New York, where on 11 July 1942 she married a man named Daniel McMahon. Katharine was widowed before her death in Detroit at the age of 51 on 17 January 1947.