Items
recipient is exactly
Kummel, Henry Barnard
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[LB065249], Letter from Thomas Alva Edison to Henry Barnard Kummel, November 23rd, 1900 1900-11-23 -
[LB078563], Letter from Thomas Alva Edison to New Jersey. Geological Survey, Henry Barnard Kummel, December 21st, 1908 1908-12-21
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[LM241936], Letter from Walter Seeley Mallory to New Jersey. Geological Survey, Henry Barnard Kummel, January 15th, 1901 1901-01-15