- The Motor Girls on Crystal Bay by Margaret Penrose, 1914-01-01
- The Motor Girls
- The Motor Girls On Crystal Bay or The Secret of the Red Oar by Margaret Penrose, 1914
- Dorothy Dale's Queer Holidays by Margaret Penrose, 2010-07-12
- DOROTHY DALE'S CAMPING DAYS #6 by Margaret Penrose, 1911-01-01
- The motor girls at Lookout Beach: Or, in quest of them runaways (Her The motor girls series) by Margaret Penrose, 1911
- The Camp Fire Girls of Roselawn by Margaret Penrose, 2009-04-07
- MOTOR GIRLS ON THE COAST, THE, or The Waif from the Sea, #6 Motor Girls Series by Margaret Penrose, 1913-01-01
- The Motor Girls or A Mystery of the Road by Penrose Margaret, 1910
- The Fatal Fifth by Margaret Penrose, 1963
- The Motor Girls in the Mountains, or the Gypsy Girl's Secret by Margaret Penrose, 1917
- The Motor Girls Through New England or, Held By the Gypsies by Margaret Penrose, 1911-01-01
- The Campfire Girls on the Program or Singin and Reciting at the Sending Station by Margaret Penrose,
- The radio girls on the program, or, Singing and reciting at the sending station (Radio girls series) by Margaret Penrose, 1922
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