Engineman Peter Erasmus Yens Olsen, Royal Naval Patrol Service (RNPS), was on patrol on HM Drifter Xmas Rose in the Thames Estuary on 21 November 1940 when the trawler hit a mine.

All four crew, Peter, John Smith Geddes, Hubert Daniel Johns and John Merson, perished and their bodies were never found.

Their names appear on the Lowestoft Memorial.