One of the perks of family history is that it washes up random bits and pieces that turn out to be quite amazing.
We bought an old photo album from ebay to give our old family photos an appropriate home, but when the album arrived, it turned out to have photos in it already. As we don't want to throw away photos that might be valuable for someone, I started googling the names of the people shown. It turns out to be the family of a renowned scholar of the history and didactics of chemistry, Rudolf Winderlich (1876 - 1951).
There are photos of him, his children, their spouses etc. If there's any Winderlich relative out there who can prove their connection by giving three of the names mentioned in the album, I'll be happy to send them the photos. (or indeed the album too, if they refund what we paid for it. The album does carry a dedication which might be of interest to the family.) Just leave a comment here.
PS after checking the date of the dedication at the front of the album, I have come to the conclusion that the young persons in the album are more likely to be his siblings than his children.