Penrose, Margaret,

The campfire girls of Roselawn : or, A strange message from the air
The Campfire Girls on Station Island; Or, The Wireless from the Steam Yacht
Dorothy Dale: A Girl of To-Day
Dorothy Dale and Her Chums
Dorothy Dale at Glenwood School
Dorothy Dale in the City
Dorothy Dale in the West
Dorothy Dale's Camping Days
Dorothy Dale's engagement
Dorothy Dale's Great Secret
Dorothy Dale's Promise
Dorothy Dale's Queer Holidays
Dorothy Dale's School Rivals
Dorothy Dale to the rescue
The Motor Girls
The Motor Girls at Camp Surprise; Or, The Cave in the Mountains
The Motor Girls at Lookout Beach; Or, In Quest of the Runaways
The Motor Girls in the Mountains; or, The Gypsy Girl's Secret
The Motor Girls on a Tour
The Motor Girls on Cedar Lake; Or, the Hermit of Fern Island
The Motor Girls on Crystal Bay; or, The Secret of the Red Oar
The Motor Girls on the Coast; or, The Waif From the Sea
The Motor Girls on Waters Blue; Or, the Strange Cruise of the Tartar
The Motor Girls Through New England; or, Held by the Gypsies
The Radio Girls at Forest Lodge; or, The Strange Hut in the Swamp
The radio girls of Roselawn : or, A strange message from the air
The Radio Girls on Station Island: The wireless from the steam yacht
The Radio Girls on the program : or, Singing and reciting at the sending station

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