About Armstrong Sperry
Armstrong Wells Sperry was an American writer and illustrator of children's literature. His books include historical fiction and biography, often set on sailing ships, and stories of boys from Polynesia, Asia and indigenous American cultures. He is best known for his 1941 Newbery Medal-winning book Call It Courage. Sperry invented what became the first boat shoe, the Sperry Top-Sider. Sperry's first book, One Day with Manu, a colorfully illustrated tale of everyday life in Bora Bora, appeared in 1933.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.