[noun] United States child psychologist whose theories of child psychology strongly influenced educational psychology (1844-1924) Synonyms:Hall, G. Stanley Hall, Granville Stanley Hall
[noun] United States chemist who developed an economical method of producing aluminum from bauxite (1863-1914) Synonyms:Hall, Charles Martin Hall
[noun] United States explorer who led three expeditions to the Arctic (1821-1871) Synonyms:Hall, Charles Francis Hall
[noun] United States astronomer who discovered Phobos and Deimos (the two satellites of Mars) (1829-1907) Synonyms:Hall, Asaph Hall