Dr. Sadler, British almanac office, Hertsmonceaux, England Smiley, Charles H. (Charles Hugh) 1903-1977 photographer still image slides (photographs) 1955-07-15 eng 1 slide; 7 x 7 cm A photograph of Dr. D.H. Sadler, of the British Nautical Almanac Office (NAO), taken at Hertsmonceaux, England, the location of the Royal Greenwich Observatory. Dr. Sadler was the author of many articles on astronomy, and he and his colleagues at the NAO played a key role in the development of automated computing for the purpose of astronomical calculations. Archives of the Ladd Observatory 31 http://pike.services.brown.edu/ladd 1182537060519750 Copyright Not EvaluatedCollection is open for research.