At age 7, Gellhorn participated in "The Golden Lane," a rally for women's suffrage at the Democratic Party's 1916 national convention in St. Louis. Women carrying yellow parasols and wearing yellow sashes lined both sides of a main street leading to the St. Louis Coliseum. A tableau of the states was in front of the Art Museum; states that had not enfranchised women were draped in black. Gellhorn and another girl, Mary Taussig, stood in front of the line, representing future voters.