author
1880–1951
Best known for retelling classic stage and storybook favorites for younger readers, this early 20th-century British author helped bring works like Peter Pan and The Mikado to a wider audience. His books were often adapted from well-known originals and presented in a clear, accessible style.

by Daniel O'Connor, J. M. (James Matthew) Barrie
Daniel Stephen O'Connor (1880–1951) was a British author whose surviving bibliographic record is tied mainly to retellings and adaptations. Public-domain and library listings identify him as the author of works including The Story of Peter Pan, based on J. M. Barrie's play, and The Story of the Mikado, connected with W. S. Gilbert.
Rather than being known for a large, independently famous body of original fiction, he seems to have built his reputation around making popular stories more approachable for general and younger readers. That gives his work a practical charm: he acted as a bridge between celebrated theatrical or literary works and readers meeting them in book form.
Firm biographical details beyond his dates and his published works were not clearly confirmed in the sources I found, so this overview keeps to the parts of his career that can be supported with confidence.