Hobart joined the Cincinnati Chapter of the Daughters of the American Revolution in 1898, serving as chapter regent for three terms.[1] She later served as the State Regent of Ohio for three years, as Organizing Secretary General, and as Chairwoman of the Buildings and Grounds Committee.[1] She served as President General of the national society from 1929 to 1932, and during her tenure as president general, DAR Constitution Hall was completed.[1][2] During her presidency, she traveled to 47 U.S. states.[3] After her term ended, she was elected as Honorary President General.[1]