Duckham finished the tour with 11 tries in 17 appearances, with six coming in a midweek game against West Coast/Buller.
"All at the Rugby Football Union are saddened to learn of the death of David Duckham MBE," said a statement from England Rugby.
"Duckham played 36 times for England, scoring 10 tries, and was also part of the revered Lions squad of 1971 that defeated New Zealand. Our thoughts are with his family and friends."
