She soon became pregnant and the couple married on July 9 , 1966 .
Shortly after the relationship with Thornsberry ended , Theresa met and began a relationship with a United States Marine private named Robert Knorr .
Theresa soon became pregnant and the couple married on July 9 , 1966 .
Shortly after the relationship with Thornsberry ended , Theresa met and began a relationship with a United States Marine private named Robert Knorr .