#11: She Becomes Stepmother to Russell and Sean Catherine Derek at 19
John Derek already had two children from his first marriage to actress Pati Behrs. Russell Derek was born in 1950, while Sean Catherine Derek arrived in 1953 and later became a television writer and producer. Bo, born in 1956, was younger than both of them when she married their father.

The unusual age arrangement reflected the nearly 30-year gap between Bo and John. At only 19, she entered a marriage, family, and professional partnership shaped largely by her much older husband. Before long, however, Bo would step outside John’s productions and face Hollywood audiences for the first time.
