According to: http://www.washingtonlife.com/issues/may-2006/q&a-cafe/
Carol Joynt: Why don't you start by answering this question: How do we pronounce your name?
Erica Jong: (Zhong). When I was very young I had a schizophrenic first husband and I thought that the cure was to immediately marry a psychiatrist So I married a Chinese-American doctor named Allen Jong and published under that name but people see me and think I am Dutch.