Zorro's Black Whip (1944)

"MASK OF MYSTERY! Who is this daring figure who conquers villainy and evil with the crack of a blazing black whip!"

Pretty Girl Barbara Mededith takes over her murdered brother's crusading newspaper. She also assumes the dead sibling's identity as "The Black Whip," righting the wrongs of Crescent City very much in the manner of her famous ancestor, Zorro.