 Her siblings include David Straight, Michael Straight Jr., Susan Straight, and Dinah Straight.Straight was named after her paternal grandmother, Dorothy Payne Whitney (1887–1968), the daughter of William Collins Whitney, the U.S. Secretary of the Navy during the Cleveland administration, and Flora Payne, the daughter of Senator Henry B. Payne of Ohio and sister of Col. Oliver Hazard Payne.Straight's paternal grandfather was Willard Dickerman Straight (1880–1918), the son of Henry Harrison Straight (1846–1886).