Complex sentence: Only 22 men managed to climb onto three life rafts, but only one of them, a stoker named Hugo Zenne, survived and was eventually picked up by the Norwegian freighter "Willy".
Split into simpler sentences: Only 22 men managed to climb onto three life rafts, but only one of them, a stoker named Hugo Zenne, survived. He was eventually picked up by the Norwegian freighter "Willy".