Margaret Penrose

The Motor Girls at Lookout Beach / In Quest of the Runaways

The Motor Girls Through New England / or, Held by the Gypsies

The Motor Girls on a Tour

The Motor Girls on Crystal Bay / or, The Secret of the Red Oar

Dorothy Dale : a girl of today

The Motor Girls on the Coast / or, The Waif From the Sea

Dorothy Dale's Queer Holidays

The Campfire Girls on Station Island / or, The Wireless from the Steam Yacht

The Campfire Girls of Roselawn / Or, a Strange Message from the Air

Dorothy Dale in the City

The Motor Girls in the Mountains: or, The Gypsy Girl's Secret

The Motor Girls at Camp Surprise / The Cave in the Mountains

Dorothy Dale's Camping Days

Dorothy Dale at Glenwood School

The Motor Girls on Waters Blue / Or the Strange Cruise of the Tartar

The Motor Girls

The Motor Girls on Cedar Lake; Or, the Hermit of Fern Island

Dorothy Dale's School Rivals

Dorothy Dale's Great Secret

Dorothy Dale in the West