Howard Roger Garis 
Uncle Wiggily and The Pirates [EPUB ebook] 

Excerpt: "Once upon a time Curly and Floppy Twistytail, the two piggie boys, thought they would play the game of Pirate. They whittled out some wooden swords and made a wooden raft. On the raft they set sail across the duck pond ocean. "We’ll sail over to Uncle Wiggily’s bungalow and capture him, " grunted Curly. "What do we do after we capture him?" asked Floppy. "Hold him for a ransom, " said Curly."