- Related, on her mother's side, to U.S. President Zachary Taylor.
- On 11 June 1976, the Dorothy and Lillian Gish Film Theater was dedicated on the Bowling Green State University campus in Bowling Green, Ohio, USA.
- Upon her death, her remains were interred at Saint Bartholomew's Episcopal Church in New York City.
- While under contract to Paramount in the early 1920s, the studio published an instruction pamphlet titled "Proper Inspection, Splicing, and Care of Films" for local movie theaters and distributors. Dorothy modeled for the photographs in the pamphlet that illustrated how to handle, repair and store film.
- The two airplanes in the movie "High Road To China" were named after Dorothy and her sister Lillian.
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