This bright blue striped nautical outfit painted by “SF” is a potential reference to the popular “Dolly Varden” fashion, which emerged as a result of the revival of polonaise dresses from the eighteenth century. According to the V&A:
The subject is paddling a canoe with a long wooden pole and wearing a straw hat with “ADA” written across the ribbon. A “sailor” straw hat was customarily worn with informal wear.