Sir Joseph Banks , 1st Baronet , GCB , PRS ( 13 February 1743 -- 19 June 1820 ) was an English naturalist , botanist and patron of the natural sciences . Sir Joseph Banks , 1st Baronet , GCB , PRS ( 2 February 1743 -- 19 June 1820 ) was an English naturalist , botanist and patron of the natural sciences .