Complex sentence: Peuchen owned a yacht named "Vreda" which crossed the Atlantic under its own canvas and was, for a time, Vice-Commodore and Rear-Commodore of the Royal Canadian Yacht Club.
Split into simpler sentences: Peuchen owned a yacht named "Vreda", which crossed the Atlantic under its own canvas. Additionally, he was, for a time, Vice-Commodore and Rear-Commodore of the Royal Canadian Yacht Club.