Elisha Scott Loomis
Elisha Scott Loomis ( September 18 , 1852 – December 11 , 1940 ) was an American teacher , mathematician , genealogist , writer and engineer . 
<triplet> Elisha Scott Loomis <subj> September 18, 1852 <obj> date of birth <subj> December 11, 1940 <obj> date of death