Dinas, although registered in Fleetwood (FD55) and had Fleetwood owners, perhaps did fish out of Hull. There's a picture here. An earlier Fleetwood Dinas of 1909 was wrecked in 1936. She was originally a Milford boat, and moved to Fleetwood after minesweeping duties in the Great War. Presumably the Dinas Steam Trawling Company (General Manager Joseph A Marr) was named for her.