Here is what I have for the first boat:
CAP D’ANTIFER (Pennant FY 350) was a 294-ton British motor fishing vessel that was built in France in 1912 and launched as the COMPASS for the Belgian company, believed to have been Armement a la Peche Auguste Brunet S.P.R.L. in Ostende. An oil/diesel engine that developed 150bhp powered her single steel propeller, which gave her a maximum speed of 8.5-knots. She became a French Navy vessel at the outbreak of WWII and on 3 July 1940, the boat was seized at Southampton and taken into the Royal Navy as an armed Patrol vessel later that year. In 1941 she was converted to a Royal Navy minesweeper. Final voyage:
On 13 February 1944, the Grimsby based minesweeping trawler HMT CAP D’ANTIFER was on sweeping duties off the Humber when Korvettenkapitän Zymalkowski’s E-boats of the Eighth Flottille attacked and sunk her with a torpedo. There were no survivors and all that was ever found was an oil slick and a piece of the boat’s nameboard.
Crew list at the time of her loss;
Lieutenant James Neill, CO
Lieutenant John Whitcomb
Robert Cockayne, Telegraphist
Richard Baldock, Engineman
Wilfred Baxter, Stoker
Alfred Burgham, Leading Cook
Frederick Cook, Seaman
Frederick Fox, Engineman
Victor Hobbs, Leading Seaman
John Hookem, Signalman
George Jones, Stoker
Daniel Lambert, Seaman
Richard Ling, Stoker
Arthur Mckinsley, Steward
Arthur Moorcroft, Seaman
Thomas Quincey, Cheif Engineman
Ralph Scott, Seaman
Richard Smith, Seaman
George Stutters, Seaman
Charles Topliss, Seaman
Cyril Ward, Seaman
Peter White, Second Hand
Charles Wilkinson, Seaman
Percy Fathers, Seaman

She now lies 5.15-nautical miles SE from East Dudgeon Shoal bell-buoy in 17 metres, the lowest astronomical depth. The wreck is now totally collapsed and well broken up, with the highest parts standing just 2m high and surrounded by a small mound of broken debris

Cheers Ron