Yi-Kwei Sze, bass, (April 29, 1915 - May 10, 1994)
In Kutsch-Riemens Großes Sängerlexikon 1993 he is to be found under "Y"
Sometimes his name is spelled as Yi-Kwe Sze.
Look for him at YouTube
WWW site from one of his students with biography and several songs
E-mail me if you wish