Liisi Oterma
Liisi Oterma ( 6 January 1915 – 4 April 2001 ) was a Finnish astronomer , the first woman to get a Ph . D . 
<triplet> Liisi Oterma <subj> 6 January 1915 <obj> date of birth <subj> 4 April 2001 <obj> date of death