The Motor Girls on Cedar Lake; Or, the Hermit of Fern Island
The Motor Girls on a Tour
The Motor Girls at Lookout Beach; Or, In Quest of the Runaways
The Motor Girls
The Motor Car Dumpy Book
Motor Camping
The Motor Boys Under the Sea; or, From Airship to Submarine
The Motor Boys Overland; Or, A Long Trip for Fun and Fortune
The Motor Boys on the Wing; Or, Seeking the Airship Treasure
The Motor Boys on the Pacific; Or, the Young Derelict Hunters
The Motor Boys on the Border; Or, Sixty Nuggets of Gold
The Motor Boys in Mexico; Or, The Secret of the Buried City
The Motor Boys After a Fortune; or, The Hut on Snake Island
The Motor Boys Across the Plains; or, The Hermit of Lost Lake
The Motor Boat Club in Florida; or, Laying the Ghost of Alligator Swamp
The Motor Boat Club and The Wireless; Or, the Dot, Dash and Dare Cruise