@Kate. I have limited knowledge about the history.
As an outsider, the categories seem confusing to me. In my opinion, [[Category: Prisoner of War Ships, New York Harbor, British American Revolution Camps for American POWs]] should not be identified as a high level category that does not contain individual profiles.
It would be more clear to me if the POWS were identified in the more general [[Category: British American Revolution Camps for American POWs]]
If it is useful to identify by ship, I like the example of [[Category: Torbay Prison Ship, Charleston, South Carolina]]