British steam trawler St. Fistan lost after being attacked by enemy aircraft according to the War Cabinet Weekly Résumé No. 83 of the Naval, Military and Air Situation 27 March-3 April 1941

An item reported that on 22 March was lost due to bombs thrown by enemy aircraft the British steam trawler St. Fistan, tonnage 495 tons, loaded with -, underway from Drogheda, Ireland to Cardiff, Wales, part of convoy not, on the position 7 miles west north west of Smalls. All crew members missing.

Source

National Archive UK. CAB-66-16-1.