In the book "Surprise Island" by Gertrude Chandler Warner, a character named Joe reveals that his middle name is Joseph. This detail about his name adds depth to his character and highlights a personal aspect of his identity. Joe's casual mention of his name also reflects his approachable personality, making him relatable to readers.

The context of this revelation contributes to the overall narrative of the book, where the characters embark on adventures and learn about themselves and each other. Such small details often enrich the storytelling, allowing readers to connect more closely with the characters.