Stewart attended Randolph Macon—a women's college in Lynchburg, Virginia—then transferred to Ohio Wesleyan University to study history and education, where she graduated with a bachelor's degree in 1939.
She also served on the public relations committees of many organizations including the New York State Salvation Army and the American Foundation for Religion and Psychiatry.
The pair moved to a quaint Phoenix suburb, Litchfield Park, where Stewart regularly volunteered with nonprofit organizations, including the library board.
Following years of struggle with amyotrophic lateral sclerosis (ALS), Stewart committed suicide in Litchfield Park, Arizona on September 7, 1990.
[4] After graduating, Stewart spent five years as an assistant for press relations at Long Island Rail Road.
[6] Group Attitudes was known as a PR research firm, and in this aspect of Public Relations, Stewart excelled.
She helped open the agency to other women executives, and according to Barbara Walkley, a female employee of H&K, she was "a role model...because of her manner."
Carl Lewis, who knew her as a fellow employee of H&K said, "She was one of the best, and of the earliest regardless of gender, in public relations attitude research."