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Howard P. "Bob" Robertson (1903–1961), American mathematician and physicist •
R. G. Hamish Robertson (born 1943), Canadian physicist •
Robert Alexander Robertson (1873–1935), Scottish botanist •
Robert H. S. Robertson (1911–1999), Scottish chemist and mineralogist •
Robert Robertson (chemist) (1869–1949), Scottish chemist •
Robert Robertson (physician) (1742–1829), British physician, Fellow of the Royal Society ==Sports==