Sir George Shearing was born on August 13, 1919.
Sir Robert George was born on July 27, 1896.
Sir George Pearce was born on January 14, 1870.
Sir George Grove was born on August 13, 1820.
Sir George Murray was born on February 6, 1772.
Sir George Bowen was born on November 2, 1821.
Sir George Henschel was born on February 18, 1850.
Sir James George Frazer was born on January 1, 1854.
Sir George-Étienne Cartier was born on September 6, 1814.
Sir Adams George Archibald was born on May 3, 1814.
There was probably no real person called "Sir Lanceolot" and, if there was, we do no know when his birthday was.
Sir George Jessel died in 1883.
Sir George Jessel was born in 1824.