Did Walt Whitman say “I sound my barbaric yawp over the roofs of the world”?

Did Walt Whitman say “I sound my barbaric yawp over the roofs of the world”?

Found word for word. Yes. The text appears in works attributed to Walt Whitman. Source and location below.

I too am not a bit tamed, I too am untranslatable, I sound my barbaric yawp over the roofs of the world.
Leaves of Grass — Walt Whitman, BOOK III · ¶494 · Public domain (US), Project Gutenberg #1322 · source

All checked quotes → · Method on GitHub