Samuel R. Quiñones
Samuel Ramón Quiñones Quiñones ( October 29 , 1903 – March 11 , 1976 ) commonly known as Samuel R . Quiñones was a prominent attorney in Puerto Rico who served as Speaker of the House of Representatives of Puerto Rico from 1941 to 1943 and for twenty years in the Senate of Puerto Rico as its fifth President , from 1949 to 1968 , by far the longest serving Senate President . 
<triplet> Samuel R. Quiñones <subj> March 11, 1976 <obj> date of death