I've been doing the tree for some time but got carried away with what was a false lead and had to scrap most of my IOM branches.
This is what I do know....
I'm related to Ellen Jane Corlett, born 1884 in IOM and died in Manchester on 19 October 1919. She'd have been my great grandmother. She married Peter Riley on 7 July 1906 in Manchester. I know he'd been a pastor in New York in USA and moved to England in about 1903. He was originally from Ireland.
Ellen Jane had a sister Katie who was younger and an older brother John. I've found them on the 1891 and 1901 census in IOM. Their mother was Isabella Morrison and their father John Corlett.
Do you have Kate's marriage certificate?
There's not a lot I know but it sounds likely that they are the same family.