Alex Moes, thank you for responding.
Unfortunately I've had no response at all from either Private User or Lucile van Veen to whom I've also sent a private message. Perhaps I am doing something wrong and not using the web site correctly. I'd have thought that a possible piece of personal information about a family member would be very welcome - the drawing actually looks like the photograph in the profile of Louis van Veen. If it is not the same person, a reply from the family would have been courteous.
I'm going to abandon this line of inquiry.
@louis van veen. I just read your message by chance. I'm Louis van Veen's eldest daughter and Marc Bodson's mother and I suppose the "private child" !
My name is Marijke van Veen but usually called Micky. Perhaps you could send me a photograph of the drawing and especially of the signature which is recognisable amongst thousands. Please use my email address: micky0@icloud.com.
Thanks a lot, and i will let you know if it is my father or not.
Sincerely
Micky
Thank you Alex Moes. I had stopped monitoring this conversation. I'll reply to the e-mail given and see how lucky I may have been.