Gertrude Rand
Marie Gertrude Rand Ferree ( October 29 , 1886 – June 30 , 1970 ) was an American research scientist who is known for her extensive body of work about color perception . 
<triplet> Gertrude Rand <subj> October 29, 1886 <obj> date of birth <subj> June 30, 1970 <obj> date of death