Having half my blood line coming from your land, I didn't inherit in anyway knowledge of the Derwentwater. I looked it up and found out so many things including a Lake with the name. I can even book a hotel room at the Derwentwater. I have in my tree branches Abernathy, Turner and even Lightfoot. I am not sure if Brown comes from the big island. I need to look it up on the net. I really like the photo and its mystery of passengers on the ship.
Yes . It is a bonus when people write on the back of photos. Stayed in Keswick a few years ago. Lovely area.