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In page John Heysham Gibbon:

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Gibbon was born in Philadelphia, Pennsylvania on September 29, 1903. Descended from the Gibbon family, who first arrived in Philadelphia from Wiltshire, England in 1684, his father was a surgeon at Pennsylvania Hospital and the Hospital of Jefferson Medical College. Gibbon was the second oldest of four children and grew up attending the Penn Charter School in Philadelphia. He entered Princeton University at 16 and received his AB in 1923. He went to medical school at Jefferson Medical College of Philadelphia and received his MD in 1927. He completed his internship at Pennsylvania Hospital from 1927 to 1929.