When I found this picture on the internet (totally by coincidence), I recognized him immediately (front row, 2nd right). It was taken on the occasion of my great-great grandparents' 40th wedding anniversary (1891).
I contacted the person who put this picture on the internet and he appeared to be a descendant of one of the girls. He gave me some really valuable information and he also sent me the email address of somebody else, who appeared to be a descendant of the youngest daughter of the family (thank God for the internet!).
One week before Christmas there was a cd in my mailbox, full of old family pictures.The oldest picture, the painter as a young boy, dates from around 1870 probably. It is the only picture I have ever seen of him without a moustache.
He was quite a handsome man.
My grandfather, his youngest child, looked so much like him.
These old photos are priceless (thank you Johan)!