This is an international website - if you resubmit this question with a few details to indicate which Gary Ackerman you're stalking, your odds of getting a "good answer" are much higher. Just sayin'.
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Alexandra Ackerman's birth name is Alexandra Miriam
Ackerman.
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Andy Ackerman's birth name is Robert Andrew Ackerman.
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Jed Ackerman's birth name is Jedidiah Charles Ackerman.