Plenty of descendants around the world still looking at Graham Lemon and his family. His second wife Isabelle Ross, over 40 years his junior, was, as you say, a feisty lady. She was probably also a gold-digger, a nuisance to Graham's family and living well beyond her means. There are far too many stories to even begin...……………
She died in July 1938 in Dublin and is buried in Mt Jerome cemetery, although various legal wranglings continued long after her death. I'm interested in your statement that she was imprisoned, as none of the newspaper reports I have seen have mentioned this.