Robert Ritter
Robert Ritter ( 14 May 1901 – 15 April 1951 ) was a German "racial scientist" doctor of psychology and medicine , with a background in child psychiatry and the biology of criminality . 
<triplet> Robert Ritter <subj> 14 May 1901 <obj> date of birth <subj> 15 April 1951 <obj> date of death