author
A classic Stratemeyer Syndicate house name, this byline introduced generations of young readers to fast-moving adventures for girls. The books behind it helped shape early 20th-century series fiction, especially through Dorothy Dale, The Motor Girls, and The Radio Girls.

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose

by Margaret Penrose
Margaret Penrose was not a single writer, but a house pseudonym used by the Stratemeyer Syndicate, the book-packaging company behind many popular children's series. Under this name, stories were published by Cupples & Leon for young readers who wanted friendship, mystery, and adventure in equal measure.
The name appeared on three main series: Dorothy Dale (published from 1908 to 1924), The Motor Girls (1910 to 1917), and The Radio Girls (1922 to 1924). The Dorothy Dale books were especially important because they became the Syndicate's first long-running series centered on a girl protagonist.
As with many Stratemeyer books, different ghostwriters worked behind the scenes, and sources note that many of these titles were written by Lilian Garis. Even so, the Margaret Penrose name became a familiar promise to readers: lively heroines, brisk plots, and a window into the interests and inventions of the early 1900s.