Thanks Elwyn
I can see i the local papers, the land being sold in 1915/1916 (i do know but not to hand) but i think John and Sarah left the farm vacant before then. Sarah signed the Ulster Covenant in 1912 but it looks to me like that left around 1912 and the court took over the farm until it could be sold and monies passed to John's first wife.
Presumably they could have gone back to America under a false name as it was before passports. He was an American citizen though so i thought he would surface somewhere once the divorce was finalised. I have also tried to trace the family of Sarah Norris and her brother James who was living with them in Nebraska but their are lots of people with those names so i couldn't pinpoint anyone.
Many thanks
Christine