Lavinia R. Davis

Lavinia Riker Davis (1909–1961) was an American author of picture books, teenage novels, and mysteries for children and adults. She wrote over forty books, mostly under her own name, but sometimes using the pseudonym "Wendell Farmer".

She also wrote short stories, some published in The American Girl, The American Boy, St Nicholas and The Magazine of Fantasy & Science Fiction.

One of her illustrators, Hildegard Woodward, was twice awarded the Caldecott Honor for her illustrations to books written by Lavinia R. Davis, Roger and the Fox in 1948, and The Wild Birthday Cake in 1950.
https://en.wikipedia.org/wiki/Lavinia_R._Davis