In 1915, Hurst secretly married Jacques S. Danielson, a Russian émigré pianist. Hurst kept her maiden name and the couple maintained separate residences and arranged to renew their marriage contract every five years, if they both agreed to do so. The revelation of the marriage in 1920 made national headlines, and "The New York Times" criticized the couple in an editorial for occupying two residences during a housing shortage. Hurst responded by saying that a married woman had the right to retain her own name, her own special life, and her personal liberty. Hurst and Danielson had no children, and remained married until Danielson's death in 1952. After his death, Hurst continued to write weekly letters to him for the next 16 years until she died, and regularly wore a calla lily, the first flower he had ever sent her.