Famous Geologists' 🎂 Birthdays, June 20, United States

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Profession Birth Region Birth Place 👉 Worldwide Celebrity Birthdays Today

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1 Stanley Robert Hart

Jun 20, 1935

Massachusetts

American geologist

2 Francis J. Pettijohn

Jun 20, 1904

Wisconsin

geologist

[Total 2 People]

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Famous Geologists' 🎂 Birthdays, June 20, United States

1 Stanley Robert Hart

2 Francis J. Pettijohn

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