Loch Garten - Returning young from previous years?

Is there a history of Osprey young bred at Loch Garten in previous seasons returning to the nest area or indeed the general area to raise broods of their own? I'm aware and working through the histories of various young raised in recent years and their turning up back where they begun thanks to excellent recording and satellite data. I'd like to make some kind of family tree or know if such a thing already exists. For example one of the early Northumberland birds female Blue 35 (Kielder) is the resident female at Foulshaw Moss in Cumbria. Any of the long-term watchers of LG any records of previous chicks?