| May 9th 1265 | | Dante Alighieri, Italian poet (Divina Commedia)
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| May 9th 1596 | | Abraham van Diepenbeeck, painter
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| May 9th 1738 | | John Pindar, [Peter], physician/poet
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| May 9th 1740 | | Giovanni Paisiello, Italian composer (Barber of Seville)
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| May 9th 1783 | | Alexander Ross, Canada, pioneer/fur trader
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| May 9th 1785 | | James Pollard Espy, Penns, meteorologist (Philosphy of Storms)
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| May 9th 1793 | | Johannes C de Jonge, Dutch historian/archivist
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| May 9th 1796 | | August Pauly, German classicus (Real Encyclopedia)
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| May 9th 1800 | | John Brown, abolitionist; led attack on Harpers Ferry
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| May 9th 1801 | | Samuel Cousins, mezzotint engraver
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| May 9th 1810 | | WFLC Marianne, princess of Orange-Nassau/daughter of king Willem I
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| May 9th 1810 | | Louis Gallait, historical painter
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| May 9th 1814 | | Adolph von Henselt, composer
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| May 9th 1824 | | William Edmonson "Grumble" Jones, Brig General (Confederate Army)
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| May 9th 1829 | | Ciro Pinsuti, pianist/composer
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