The Motor Boys on the Pacific; Or, the Young Derelict Hunters
Jack Ranger's Western Trip; Or, from Boarding School to Ranch and Range
Ned, Bob and Jerry on the Firing Line; Or, The Motor Boys Fighting for Uncle Sam
The Motor Boys; or, Chums Through Thick and Thin
The Motor Boys Overland; Or, A Long Trip for Fun and Fortune
The Motor Boys in Mexico; Or, The Secret of the Buried City
The Motor Boys Across the Plains; or, The Hermit of Lost Lake
The Motor Boys Afloat; or, The Stirring Cruise of the Dartaway
The Motor Boys on the Atlantic; or, The Mystery of the Lighthouse
The Motor Boys in Strange Waters; or, Lost in a Floating Forest
The Motor Boys in the Clouds; or, A Trip for Fame and Fortune
The Motor Boys Over the Rockies; Or, A Mystery of the Air
Jack Ranger's Gun Club; Or, From Schoolroom to Camp and Trail
The Motor Boys Over the Ocean; Or, A Marvelous Rescue in Mid-Air
The Motor Boys on the Wing; Or, Seeking the Airship Treasure
The Motor Boys After a Fortune; or, The Hut on Snake Island
The Motor Boys on the Border; Or, Sixty Nuggets of Gold
The Motor Boys Under the Sea; or, From Airship to Submarine
The Motor Boys on Road and River; Or, Racing To Save a Life
Ned, Bob and Jerry at Boxwood Hall; Or, The Motor Boys as Freshmen
The Motor Boys on a Ranch; or, Ned, Bob and Jerry Among the Cowboys
The Motor Boys in the Army; or, Ned, Bob and Jerry as Volunteers
The Motor Boys Bound for Home; or, Ned, Bob and Jerry on the Wrecked Troopship
The Motor Boys on Thunder Mountain; Or, The Treasure Chest of Blue Rock
The Racer Boys; Or, The Mystery of the Wreck
The Racer boys on the prairies