Who created "Mrs. John Nightingale (Martha Washington Greene)"?

Mrs. John Nightingale (Martha Washington Greene) was created by Edward Greene Malbone in ca. 1797.

What medium is "Mrs. John Nightingale (Martha Washington Greene)"?

Mrs. John Nightingale (Martha Washington Greene) is Watercolor on ivory.

Yes, Mrs. John Nightingale (Martha Washington Greene) is in the public domain and available for free download under CC0 license.

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This artwork was created ca. 1797.

Edward Greene Malbone, ca. 1797