Birth Date Cake O'Clock Birth Date Clock

Mary R. Calvert

Mary R. Calvert
Mary R. Calvert, American astronomer and author (d. 1974)

Mary Ross Calvert was an American astronomical computer and astrophotographer. She started as her uncle Edward Emerson Barnard's assistant and ended publishing his work that cataloged over 300 dark objects — primarily those that extinguish the most starlight reaching the Earth lie between the bulk thus between the Local Arm and the Sagittarius Arm. She went on to publish other photographic works on astronomy.

20 June 1884

Random

Born on the same birth date (20 June 1884): Johannes Heinrich Schultz

Born on the same birth day (20 June): Charles Emmanuel II, Duke of Savoy • Danny Cedrone • David Kazhdan • Elisabeth Hauptmann • Joan Balcells • Joseph Autran • Luigi Amat di San Filippo e Sorso • Neil Trudinger • Simin Behbahani

Born in the same month (June 1884): Claude Auchinleck • Cyclone Taylor • Daniel-Henry Kahnweiler • Frank Waller (athlete) • Gaston Bachelard • Géza Gyóni • Harry Langdon • Ivy Compton-Burnett • James Rector • Johannes Heinrich Schultz • John McCormack (tenor) • Lamina Sankoh • Leon Chwistek • Édouard Daladier