I'm so glad to hear of your work with County Monaghan deeds. Wish you had already completed it and I could look up all my ancestors! It will be a great contribution to Irish family history and will help many other researchers in the future.
Several of us have been working on our Irish Calvin and Hadden ancestry since the 1980s, both with our own research and by paying for professional research assistance in Ireland. There has been partial work in deeds, but by no means complete.
I'll write you a separate message later today or tomorrow, and will send more details of what we've found (and not yet found!). Anything you can help with would be greatly appreciated.