Margaret PenroseVolumes 1 through 11 of the Dorothy Dale series were ghostwritten by Lilian Garis, volumes 9 through 12 by W. Bert Foster, and volumes 13 by Elizabeth Duffield Ward. A few series written by Cupples & Leon under the alias "Margaret Penrose" are publised by the Stratemeyer Syndicate. The Dorothy Dale series (1908–1924), the Syndicate's first lengthy series featuring a female protagonist, was the first to utilize this name. The Motor Girls series (1910–1917), a rival to the popular Motor Boys series (1906–1924), also took the moniker in response to this success. The latest new series to bear this moniker was the Radio Girls series (1922–1923). In 1930, the show was converted into a Campfire Girls series after being sold to Goldsmith. The Burglar's Daughter was one "Margaret Penrose"-an authored book that was not a Stratemeyer Syndicate publication (Jordan, Marsh, 1899). It was a coincidence that both pen names were from the Syndicate. Read More Read Less