She was a young widow of 28- and 29-years old when she wrote "Zenobia" (1887) and "The American Sovereign (1888). In 1890, she married George Catt, a wealthy engineer and alumnus of Iowa State University. Catt continued to lecture and wrote "Subject and Sovereign" in 1893 and "Danger to Our Government" in 1894. George Catt also encouraged her involvement in women's suffrage. Their marriage allowed her to spend a good part of each year on the road campaigning for suffrage, a cause she had become involved with during the late 1880s.