Wife Barbara, son Kaleb of late Cook County Commissioner Deer Dennis ...
Dennis or Denis is a first or last name from the Greco-Roman name Dionysius, via one of the Christian saints named Dionysius.
Dennis is both a first name and a last name taken from “ Dionysius ” of Greco-Roman origin through a Christian saint of the same name. The Anglo-Norman surname Le Denys was Latinized in the Middle Ages to become Dacus, which denoted Dacian.