Morreton Hats & Jean Desnos

After publishing my previous post I realised that, unusually, I had never Googled the name on the label - Morreton Hats. I found these three illustrations by Jean Desnos online here, along with loads of other great French fashion drawings of the period by other artists, but no more than that; no information about him, the company or the original publications.
I am presuming he was the illustrator of my label for now, although the label looks a little more late fifties or early '60's to me.
Any thoughts?
I'll endeavour to search deeper.