https://www.archives.gov/nhprc/projects/catalog/george-hale
Papers of George Ellery Hale | National Archives
Jun 3, 2019 - Enlarge George Ellery Hale at the National Academy of Sciences. Courtesy Caltech Archives (Microfilm Edition) California Institute of Technology Additional...
george ellery halepapersnationalarchives
https://www.astro.umontreal.ca/~paulchar/grps/histoire/newsite/bio/hale_f.html
George Ellery Hale
georgeelleryhale