Elizabeth Eloise Kirkpatrick Dilling (April 19, 1894 – May 26, 1966) was an American writer and political activist. In 1934, she published The Red Network—A Who's Who and Handbook of Radicalism for Patriots, which catalogs over 1,300 suspected communists and their sympathizers. Her books and lecture tours established her as the pre-eminent female right-wing activist of the 1930s, and one of the most outspoken critics of the New Deal.
Dilling was the best-known leader of the World War II women's isolationist movement, a grass-roots campaign that pressured Congress to refrain from helping the Allies. She was among 28 anti-war campaigners charged with sedition in 1942; the charges were dropped in 1946. While academic studies have customarily ignored both the anti-war "Mothers' movement" and right-wing activist women in general, Dilling's writings secured her a lasting influence among right-wing groups.
Dilling was born Elizabeth Eloise Kirkpatrick in Chicago, Illinois. Her father, Lafayette Kirkpatrick, was a surgeon of Scotch-Irish ancestry; her mother, Elizabeth Harding, was of English and French ancestry. Her father died when she was six weeks old, after which her mother added to the family income by selling real estate. Dilling's brother, Lafayette Harding Kirkpatrick, who was seven years her senior, became wealthy by the age of 23 after developing properties in Hawaii. Dilling had an Episcopalian upbringing, and attended a Catholic girls' school. She was highly religious, and was known to send her friends 40-page letters about the Bible. Prone to bouts of depression, she went on vacations in the US, Canada, and Europe with her mother.
In 1912, she enrolled at the University of Chicago, where she studied music and languages, intending to become an orchestral musician. She studied the harp under Walfried Singer, the Chicago Symphony's harpist. She left after three years before graduating, lonely and bitterly disillusioned. In 1918, she married Albert Dilling, an engineer studying law who attended the same Episcopalian church as Elizabeth. The couple were well off financially, thanks to Elizabeth's inherited money and Albert's job as chief engineer for the Chicago Sewerage District. They lived in Wilmette, a Chicago suburb, and had two children, Kirkpatrick in 1920, and Elizabeth Jane in 1925.