I recently started researching my grandfather's family, Reades of Kilkenny. My great grandfather, James Reade, had a brother Redmond, who, I believe, is your Redmond. I had no idea what happened to him, until I saw your post. Many thanks for that.
I'm sure I saw an Earnest in my search. Try looking for him back in London, where his father and most (possibly all) of his siblings were born. He might have gone to Kilkenny. If I can find him again, I'll be back.
Cheers ~ Tracy