Ethaline Hartge Cortelyou
Ethaline Hartge Cortelyou ( 26 November 1909 – 19 July 1997 ) was an American chemist and scientific technical writer and editor who worked on the Manhattan Project at the University of Chicago's Metallurgical Laboratory ( "Met Lab" ) and was one of 70 scientists to sign the 1945 Szilárd petition warning the United States government against dropping an atomic bomb on Japan . 
<triplet> Ethaline Hartge Cortelyou <subj> 26 November 1909 <obj> date of birth <subj> 19 July 1997 <obj> date of death <subj> Manhattan Project <obj> participant in <triplet> Metallurgical Laboratory <subj> Manhattan Project <obj> part of <subj> University of Chicago <obj> location