There are some very touching pictures in this collection, and I look forward to seeing what Trevor identifies in the interview below as "Part Two":

The whole exhibition is about childhood in Liverpool in the mid-70s. And it's only Part One because I'm hoping that people who identify themselves or recognize themselves or their friends or their relatives in the pictures get in touch, so I can do new photographs. And that will be Part Two.

Here's the video, via The Guardian, which has links to information about the exhibit and book.