International authority in veterinary virology and immunology
Studied Rh disease (erythroblastosis fetalis) and developed the serum which now prevents this illness worldwide
Determined precise atomic mass by greatly increasing resolution of the mass spectrometer
Founding father of nuclear science in Saskatchewan
Plant Pathologist: Expert in wheat stem rust
World's premier HIV/AIDS researcher
Chemist; Cereals Experimentalist: Developed Marquis wheat for the Canadian West