Richard Cockburn Maclaurin
Richard Cockburn Maclaurin ( ; June 5 , 1870 – January 15 , 1920 ) was a Scottish-born U . S . 
<triplet> Richard Cockburn Maclaurin <subj> June 5, 1870 <obj> date of birth <subj> January 15, 1920 <obj> date of death <subj> U.S. <obj> country of citizenship