Hello, and thank you for this information-apologies that I haven't responded sooner.
I've realised that we both go back to Martin Ivens and Mary Heys-I too have been working on the Ivens and have met some second cousins on that side via Ancestry!
My Tree is private, but I would be happy to send you a link so you can view it if that would be of interest? It's very much work in progress, but there might be some information there which could help you.
Best wishes,
Jan