Mary R. Calvert, Date of Birth, Place of Birth, Date of Death
TweetMary R. Calvert
American astronomer
Date of Birth: 20-Jun-1884
Place of Birth: Nashville, Tennessee, United States
Date of Death: 15-Jun-1974
Profession: astronomer
Nationality: United States
Zodiac Sign: Gemini 
About Mary R. Calvert
- Mary Ross Calvert (1884 - 1974) was an American astronomical computer and astrophotographer.
- She started as her uncle's assistant and ended publishing his (and their) work that cataloged over 300 dark objects (Dark Nebula).
- She went on to publish other photographic works on astronomy.
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