I'm pretty sure it's the Duluth Dukes. Looks like you can see the "s" at the end of the logo.
Here's a link to an ebay auction from one of those guys who senselessly slice up old baseball guides magazines. It is part of a 1940 article and shows what looks like this jersey. Not complete match, but the sleeve and front piping looks close. Hat looks close, too.
http://www.ebay.com/itm/Joe-Schmidt-...4AAOSwl9BWGTqh