Maude Ryder worked at the Harvard College Observatory from approximately 1929 until at least 1941. Very little information remains about her work, but she was cited as working with Harlow Shapley and Helen Sawyer in 1929 or 1930 on calculating distances related to the Large Magellanic Cloud, and a notebook was found from 1941 containing her calculations on variable stars in the Large Magellanic Cloud.1 Her name has also been found in plate notes from 1933.2
Citations:
1-Solon I. Bailey, The History and Work of Harvard Observatory, 1839 to 1927; an outline of the origin, development, and researches of the Astronomical observatory of Harvard College together with brief biographies of its leading members (New York: McGraw-Hill, 1931): 210.↩2- Lindsay Smith Zrull, “Women in Glass: Women at the Harvard Observatory during the Era of Astronomical Glass Plate Photography, 1875-1975,” Journal of the History of Astronomy, vol. 52, no. 2 (2021): 137.↩