Annie Jump Cannon

(Wikipedia) - Annie Jump Cannon (December 11, 1863 – April 13, 1941) was an American astronomer whose cataloging work was instrumental in the development of contemporary stellar classification. With Edward C. Pickering, she is credited with the creation of the Harvard Classification Scheme, which was the first serious attempt to organize and classify stars based on their temperatures.
The daughter of shipbuilder and state senator Wilson Lee Cannon and his second wife, Mary Elizabeth Jump, Annie grew up in Dover, Delaware. Mary gave birth to two more daughters after Annie, in addition to the four stepchildren she inherited in the marriage. Annie's mother had a childhood interest in star-gazing, and she passed that interest along to her daughter. Continued