Find out about James Tabernacle & Wanda Ventham Divorced, children, joint family tree & history, ancestors and ancestry. ... Wanda Ventham's grandchildren: Wanda Ventham's grandson is Christopher Cumberbatch Wanda Ventham's grandson is Hal Cumberbatch. Wanda Ventham's grandchildren: Wanda Ventham's grandson is Christopher CumberbatchWanda Ventham's grandson is Hal Cumberbatch. Right here at FameChain. Wanda Ventham's uncles and aunts: Wanda Ventham's aunt was Maud Ventham. Former actress Wanda Ventham has admitted that she wants her heartthrob son to settle down and give her some grandchildren as soon as possible. Wanda Ventham's in laws: Wanda Ventham's father in law was Henry CumberbatchWanda Ventham's daughter in law is Sophie HunterWanda Ventham's mother in law was …