[en] [Gutenberg 64609] • A West Point Treasure · Or, Mark Mallory's Strange Find General Books
[en] [Gutenberg 45452] • Connie Carl at Rainbow Ranch The Gutenberg Project
[en] [Gutenberg 57509] • The Mercer Boys at Woodcrest Createspace Independent Publishing Platform
[en] [Gutenberg 40666] • Missing at Marshlands / Arden Blake Mystery Series #3 A.L. Burt Company
[en] [Gutenberg 20071] • Sue, A Little Heroine Dodo Press
[en] [Gutenberg 54147] • Dorothy Dale and Her Chums Cupples & Leon
[en] [Gutenberg 60407] • The Mystery of Lost River Canyon Forgotten Books
[en] [Gutenberg 21842] • The Boy Scouts of Lenox; Or, The Hike Over Big Bear Mountain Amazon Digital Services, Inc.
[en] [Gutenberg 23208] • How Janice Day Won Dodo Press
[en] [Gutenberg 43584] • The Mystery of the Secret Band The Saalfield Publishing Company
[en] [Gutenberg 43011] • Roy Blakeley's Silver Fox Patrol BiblioLife
[en] [Gutenberg 44788] • The Motor Boys Afloat; or, The Stirring Cruise of the Dartaway Createspace Independent Publishing Platform
[en] [Gutenberg 41262] • Dan Carter, Cub Scout, and the River Camp U.S. Dept. of Health and Human Services, Public He
[en] [Gutenberg 34831] • Guilt of the Brass Thieves Cupples & Leon