6 THE SUBMARINE BOYS FOR THE FLAG; Or, Deeding Their Lives to Uncle Sam.
7 THE SUBMARINE BOYS AND THE SMUGGLERS; Or, Breaking Up the New Jersey Customs Frauds.
The Square Dollar Boys Series
By H. IRVING HANCOCK
1 THE SQUARE DOLLAR BOYS WAKE UP; Or, Fighting the Trolley Franchise Steal.
2 THE SQUARE DOLLAR BOYS SMASH THE RING; Or, In the Lists Against the Crooked Land Deal.