 That night, when the mother-in-law fell asleep, the couple, who felt their privacy was being invaded, went back to Money Island and took both boats with them, leaving her stranded there for three days before she was rescued.In the entry of the National Register of Historic Places for the Stony Creek-Thimble Islands Historic District (filed in 1988), the island is called Johnson Island, with Prudden and Mother-in-Law listed as alternative names.It as also been called Little Stooping Bush.