Great Lakes: "Sister Queens" Cruise Ships

The “Sister Queens of the Great Lakes,” are sister ships — the SS North American and the SS South American — which were based in the Great Lakes of the Midwestern US. They traveled to Chicago, Cleveland, Buffalo and Muskegon and passed through the famous Soo Locks, through  the Mackinac Stratis, Mackinac Island and passed by Niagara Falls.

The matchbook used for this T-shirt is from the 1940s.

Thanks for looking! Here's the shirt info:

.: 100% Airlume combed and ringspun cotton (fiber content may vary for different colors)
.: Light fabric (4.2 oz/yd² (142 g/m²))
.: Retail fit
.: Tear away label
.: Runs true to size