Clayton Valli
Clayton Valli ( May 25 , 1951 – March 7 , 2003 ) was an American prominent deaf linguist and American Sign Language ( ASL ) poet whose work helped further to legitimize ASL and introduce people to the richness of American Sign Language literature . 
<triplet> Clayton Valli <subj> May 25, 1951 <obj> date of birth <subj> March 7, 2003 <obj> date of death