Louise Blanchard Bethune
Louise Blanchard Bethune ( July 21 , 1856 – December 18 , 1913 ) was the first American woman known to have worked as a professional architect . 
<triplet> Louise Blanchard Bethune <subj> July 21, 1856 <obj> date of birth <subj> December 18, 1913 <obj> date of death <subj> architect <obj> occupation