Alexander FlemingAlexander Fleming

06 August 1881

British,Scottish

Howard FloreyHoward Florey

24 September 1898

Australian

Henry Hallett DaleHenry Hallett Dale

09 June 1875

British

John PembertonJohn Pemberton

08 July 1831

American

David HeroldDavid Herold

16 June 1842

American