Henry Norris

Groom of the stool

Harlow Shapley

American scientist

Henry Norris Russell

American astronomer

George Ellery Hale

American astronomer

Norman Lockyer

Scientist

Alfred Perot

Charles Fabry

French physicist

William Wallace Campbell

American astronomer

William Huggins

Astronomer

Edward Emerson Barnard

American astronomer

Henry Noris

Italian historian

Henri-Alexandre Deslandres

French astronomer

Walter Adams

American economist

Gustav Kirchhoff

German physicist

François Mignard

French astronomer

Samuel Langley

American astronomer