She married in 1957 , had three sons ( the eldest of whom died in 1979 ) and divorced in 1980 .
Marlin is the daughter of artist and children 's author Hilda van Stockum .
Marlin married in 1957 , had three sons ( the eldest of whom died in 1979 ) and divorced in 1980 .
Marlin is the daughter of artist and children 's author Hilda van Stockum .