Black and white photograph of the steamer Medora at the Port Carling Lock, Ontario. Several people are visible on the boat deck and the ground below.

Black and white photograph of the steamer Sagamo at the Port Carling Lock, Ontario. Several people appear to be boarding the vessel.

Locks on the Kentucky River at Frankfort, Kentucky.

Paddleboat at the locks on the Kentucky River at Frankfort, Kentucky.

Paddleboat at the locks on the Kentucky River at Frankfort, Kentucky.

Paddleboat at the locks on the Kentucky River at Frankfort, Kentucky.

Locks on the Kentucky River at Frankfort, Kentucky.

Locks on the Kentucky River at Frankfort, Kentucky.

Locks on the Kentucky River at Frankfort, Kentucky.

Imperoyal Sarnia going through the locks at Sault Ste. Marie.

Locks at Sault Sainte Marie, Michigan.

Locks at Sault Sainte Marie, Michigan.