John Xantus de Vesey a.k.a. de Csíktaplócza was a Hungarian exile and zoologist. Xantus was born Xántus János, in Csokonya, Somogy, Hungary.

William Alexander Hammond was an American military physician and neurologist. During the American Civil War he was the eleventh Surgeon General of the United States Army (1862–1864) and the founder of the Army Medical Museum.