Robert C. O'brien

Robert Leslie Carroll Conly, known by his pen name Robert C. O'Brien, was an American novelist and journalist born in 1918. He is best known for his children's novel Mrs. Frisby and the Rats of NIMH, which won the 1972 Newbery Medal. He worked as a writer and editor for publications like Newsweek and National Geographic before turning to fiction writing later in life.