From the Jeff Kreiter Vocal Group record guide...
RICHIE ITO.
-Don't Cry Linda / Yours or Mine. Stellar records-1961.
This record label also has this other recording from 1961.
DEL RICHARDSON.
-Don't Cry Linda / Lover Mine.
Possibly the singer changed his artistic name and the record label reissued the songs with the new name of the singer.
LISTEN...