When Henrietta Amann was born on 10 September 1881, in Cincinnati, Hamilton, Ohio, United States, her father, Cornelius Amann, was 43 and her mother, Catherine Margaret Saches, was 39. She had at least 2 sons with Samuel Voorhees Dempsey. She lived in Columbus, Franklin, Ohio, United States for about 20 years. She died on 13 September 1964, at the age of 83, and was buried in Union Cemetery, Columbus, Franklin, Ohio, United States.