Ralph Marlow

• The Big Five Motorcycle Boys on the Battle Line; Or, With the Allies in France
• The Big Five Motorcycle Boys In Tennessee Wilds Or The Secret Of Walnut Ridge
• Big Five Motorcycle Boys in Tennessee Wilds
• Big Five Motorcycle Boys on the Battle Line
• Big Five Motorcycle Boys on the Battle Line or with the Allies in France
• Boy Allies with Uncle Sam's Cruisers
• The Big Five Motorcycle Boys on Florida Trails, Or, Adventures Among the Saw Palmetto Crackers