(Born circa 1935) This Navajo jeweler is noted to have been active making jewelry from 1972 forward. Known for his silver jewelry employing chip inlay, he is a brother of Tommy Singer (another well known jeweler), Charlie Singer and Jackie Singer.
William Singer stamps his jewelry "S/D" to signify his authorship.
He is referenced in Gregory Schaaf's book American Indian Jewelry III: M-Z 2,100 Artist Biographies as well as Barton Wright's revised book of American Indian hallmarks, publishedin 2000.