Is "Athena;Two Classical Figures (Possibly Venus) (from Sketchbook)" in the public domain?

Yes, Athena;Two Classical Figures (Possibly Venus) (from Sketchbook) is in the public domain and available for free download under CC0 license.

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Athena;Two Classical Figures (Possibly Venus) (from Sketchbook)

This artwork was created ca. 1860.

John Quincy Adams Ward, ca. 1860