The Battleship Boys at Sea; Or, Two Apprentices in Uncle Sam's Navy
The Battleship Boys' First Step Upward; Or, Winning Their Grades as Petty Officers
The Battleship Boys in Foreign Service; or, Earning New Ratings in European Seas
The Pony Rider Boys in Alaska; Or, The Gold Diggers of Taku Pass
The Pony Rider Boys in Louisiana; or, Following the Game Trails in the Canebrake
The Pony Rider Boys in New England; or, An Exciting Quest in the Maine Wilderness
The Pony Rider Boys in New Mexico; Or, The End of the Silver Trail
The Pony Rider Boys in Texas; Or, The Veiled Riddle of the Plains
The Pony Rider Boys in the Alkali; Or, Finding a Key to the Desert Maze
The Pony Rider Boys on the Blue Ridge; or, A Lucky Find in the Carolina Mountains