Pierce met Australian Cassandra Harris in 1977, he didn’t know at the moment, but the beautiful woman would become his wife. The couple married in 1980 and Pierce later adopted Cassandra’s two children from a previous relationship, named Charlotte and Christopher, after their biological father passed away in 1986.
Cassandra and Pierce also went on to have a son of their own named Sean. In 1987, Cassandra became very ill and was later diagnosed with ovarian cancer. Four years later Pierce’s wife Cassandra passed away at the age of forty-three. She left behind three children and Pierce continued to care for them.