Francis Ysidro Edgeworth
Francis Ysidro Edgeworth ( 8 February 1845 – 13 February 1926 ) was an Anglo-Irish philosopher and political economist who made significant contributions to the methods of statistics during the 1880s . 
<triplet> Francis Ysidro Edgeworth <subj> 8 February 1845 <obj> date of birth <subj> 13 February 1926 <obj> date of death