William Henry Twenhofel: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Anniversary information added. | Apr 12, 2026 | ||
| Anniversary information added. | Jan 01, 2026 | ||
| First paragraph modernization. | Apr 22, 2024 | ||
| Add new Web site: The Geological Society of America - Biography of William Henry Twenhofel. | Nov 20, 2015 | ||
| New article added. | Oct 24, 2007 |
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