
Sophie the best way would be to coantact the dog breeder, though they may not be happy to let you have personal datea of their owners, but if you are just curious to know how they turned out etc, maybe the breeder woudl be willing to copy photos for you???
You might have more luck wityh tracing some of the ancestors, especially if they are well known dogs.
Try putting each of the names in a search engine and see what comes up. What you are likely to get if they are from known breeding is results for shows, maybe a website for an owners etc.