Clarence Young
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The Racer Boys; Or, The Mystery of the Wreck
Clarence Young
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The Motor Boys Over the Rockies; Or, A Mystery of the Air
Clarence Young
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The Motor Boys on the Wing; Or, Seeking the Airship Treasure
Clarence Young
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The Motor Boys After a Fortune; or, The Hut on Snake Island
Clarence Young
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The Motor Boys on the Border; Or, Sixty Nuggets of Gold
Clarence Young
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The Motor Boys on Road and River; Or, Racing To Save a Life
Clarence Young
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The Motor Boys Under the Sea; or, From Airship to Submarine
Clarence Young
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The Airship Inventor's Library: 33 Essential Reads
Clarence Young
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