Tough lad, Owen Hand (though he was a lovely man). Whaler, miner, prize-fighter - he did the lot.

I recollect he gave up performing about 1969 and moved to an Israeli kibbutz for a time, though he eventually returned to Edinburgh.

There's a more detailed bio of him in Colin Harper's Dazzling Stranger: Bert Jansch and the British Folk and Blues Revival which I don't have to hand right now. Bert and Owen were good friends.

I'll dig out more info later unless someone beats me to it.