Glad I could help!
No, it doesn't say anything more about him specifically; he is just one in a long list - my greatgrandfather is on the page opposite, further down the list!
The book is useful though for giving the context of their work, and it gives some clues along the way as to how one might do further research.
I can envision a better book, but this is useful inasmuch as there isn't anything else on the topic, and it is a beginning. If you are planning on doing more extensive work on his "world", then I would suggest you get the book.
On the other hand, if you're not really all that interested in hairdressers and their struggles, then perhaps not. A good chunk of the book is taken up with the author's own discovery of her family back in Germany and how she was able to find them and meet them. There are numerous photos which are interesting as well, and some examples of various forms, and a one-page bibliography.
I ordered mine directly, and didn't have to wait very long at all, FYI. The book is 140pages, printed on large paper in largish print, paperback.