Rudolf Mencl

• Dorothy at Oak Knowe
• Dorothy on a House Boat
• Dorothy's Triumph
• Frontier Boys in Frisco
• Frontier Boys in the South Seas
• The Boy Scouts on the Yukon
• The Dare Boys in Vincennes
• The Dare Boys in Virginia
• The Dare Boys with General Greene
• Frontier boys in the South Seas
• Frontier Boys in the South Seas
• The boy scouts air craft