Quark
The quark model was independently proposed by physicists Murray Gell-Mann and George Zweig in 1964. Quarks were introduced as parts of an ordering scheme for hadrons, and there was little evidence for their physical existence until deep inelastic scattering experiments at the Stanford Linear Accelerator Center in 1968. Accelerator experiments have provided evidence for all six flavors. The top quark, first observed at Fermilab in 1995, was the last to be discovered.
Fred La Rose
Alfred "Fred" La Rose, also known as "Fred Rose" and "Frederick LaRose" (c. 1870 - September 1940), was a blacksmith from Quebec who discovered silver on September 15, 1903 at the future site of Cobalt, Ontario. He is often referred to as the "Father of Cobalt," an unofficial title shared by the Province of Ontario's first geologist, Dr. W. G. Miller (1866 - 1925).