American author L. Frank Baum died #OTD in 1919.
His breakthrough came with the publication of Mother Goose in Prose (1897), which was followed by Father Goose, His Book (1899), a collection that became a bestseller. In 1900, Baum published The Wonderful Wizard of Oz, illustrated by W.W. Denslow. Baum's Oz series eventually spanned fourteen books with Baum introducing new characters and lands in each subsequent volume.
Books by L. Frank Baum at PG:
https://www.gutenberg.org/ebooks/author/42