Mary R. Calvert

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Mary R. Calvert
Mary Calvert 1927 passport.jpg
Mary R. Calvert's 1927 passport photo
Born (1884-06-20)June 20, 1884
Nashville, Tennessee
Died June 25, 1974(1974-06-25) (aged 90)
Nashville, Tennessee
Citizenship American
Known for Atlas of the Northern Milky Way and A Photographic Atlas of Selected Regions of the Milky Way
Scientific career
Fields Astronomer and astrophotographer
Institutions Yerkes Observatory

Mary Ross Calvert (June 20, 1884[1] – June 25, 1974[2]) was an American astronomical computer and astrophotographer.

In 1905, she started work at Yerkes Observatory, as assistant and computer for her uncle, the astronomer Edward Emerson Barnard (1857–1923), who was also professor of astronomy at the University of Chicago, and the discoverer of Barnard's star.

In 1923, when Barnard died, she became curator of the Yerkes photographic plate collection and a high-level assistant, until her retirement in 1946.

Barnard’s work A Photographic Atlas of Selected Regions of the Milky Way was completed after his death in 1923 by Edwin B. Frost, director of the Yerkes Observatory, and Calvert, and published in two volumes in 1927. Only 700 copies were printed, making the original edition a collector's item. The Astronomy Compendium calls it a "seminal work".[3]

She died in Nashville in 1974.


  • Atlas of the Northern Milky Way (with Frank Elmore Ross), University of Chicago Press (1934)


External links[edit]