Richard and Florence Atwater were an American couple known for their contributions to children's literature. They are best recognized for co-authoring the beloved children's book, Mr. Popper's Penguins, which was published in 1938. The story features a house painter who becomes the caretaker of a group of penguins, leading to humorous and adventurous situations. Richard Atwater was born in 1882, and Florence Atwater, born in 1886, collaborated on various writing projects. Their work has left a lasting impact on children's literature, inspiring generations of readers. Mr. Popper's Penguins remains a classic, celebrated for its imaginative storytelling and charming characters.