Galton was a polymath : an anthropologist , a eugenicist , a tropical explorer , geographer , inventor , meteorologist , proto-geneticist , psychometrician , and statistician . Sir Francis Galton FRS ( 16 February 1822 â `` 17 January 1911 ) , cousin of Douglas Strutt Galton , half-cousin of Charles Darwin , was an English Victorian polymath : anthropologist , eugenicist , tropical explorer , geographer , inventor , meteorologist , proto-geneticist , psychometrician , and statistician .