Author: Victor G. Durham

Submarine Boys and the Smugglers
Victor G. Durham

Submarine Boys for the Flag
Victor G. Durham

Submarine Boys' Lightning Cruise
Victor G. Durham

Submarine Boys and the Spies
Victor G. Durham

Submarine Boys and the Middies
Victor G. Durham

Submarine Boys' Trial Trip
Victor G. Durham

Submarine Boys on Duty
Victor G. Durham

Submarine Boys and the Spies
Victor G. Durham

Submarine Boys' Lightning Cruise
Victor G. Durham

Submarine Boys' Trial Trip
Victor G. Durham

Submarine Boys on Duty
Victor G. Durham

Submarine Boys and the Middies
Victor G. Durham