Dying childless in March 1950 , his wife became the heir to the Mortlock fortune .
Shortly after he was diagnosed with cancer , Mortlock married Dorothy Beech in December 1948 .
Dying childless in March 1950 , Mortlock 's wife became the heir to Mortlock Mortlock fortune .
Shortly after he was diagnosed with cancer , Mortlock married Dorothy Beech in December 1948 .