Rishton War Ship week was at the very start of the campaign, from the 24th - 31st January. Rishton warship week

 Rishton residents raised £114,937 for a trawler minesweeper HMS Man O' War, at a cost of  £19/2s/7d (£19.13) per head. HMS Man O' War was an ASW Trawler, built in 1936. It was taken over by the Admiralty in August or September 1939. The ship had no class in the Navy, but its Pennant was FY104

It had a displacement of 517 tons, and carried a 1/4 inch gun as armament. It was sold by the Navy on the 2nd July 1945.

On the 10th June 1943, the Council resolved that the ceremony for the exchange of plaques should be arranged with the Admiralty to take place prior to a Council Meeting in July. The Clerk reported upon the arrangements for the ceremony of the exchange of the plaques to take place at 6-30 p.m. on Thursday evening, July 15th. Resolved that the Chairman and the Secretary of each of the Warship Week Committees be invited to this ceremony.  It was decided at a council meeting on the 15th July 1943, that the Admiralty Plaque presented to the Urban District Council was to be affixed in the Council Chamber beneath the clock. The Council Clerk reported the receipt of a letter from the Lords Commissioners of

the Admiralty, on the 13th November 1947, stating that the association between the people of Rishton and the H. M. S. Man O' War was now brought to a conclusion and that the ship was now out of commission.

Allied Warships HMS Man o' War (FY 104) ASW Trawler

Commands listed for HMS Man o' War (FY 104)

Noteable events involving Man o' War include:

14 Aug 1940
The British merchant Betty was torpedoed and sunk 35 miles 260° from Tory Island in position 55°52'N, 08°14'W by the Germans submarine U-59. HMS Man o War (Lt. A.D. White, RNR) later picks up 4 survivors.

26 Mar 1943
The British merchant City of Perth was torpedoed and damaged northwest of Oran, Algeria in position 35°50'N, 01°41'W by the Germans submarine U-431. HMS Man o?War (Lt. G.L. Coles, RNR) took the ship in tow and it was beached south of Cape Figalo, Algeria. HMS Man o'War also picks up 90 survivors.

 Man o' War" turns out to be a Hull trawler, owned by Hellyers, port reg. H181, built (probably) Smith's Dock, Middlesbrough in 1937. Scrapped in 1963. Above obtained from "Arctic Corsair" website - probably more info available on request. Prior to fishing out of Hull she was built for Earl Steam Fishing Co. Ltd. as GY396 Man o War. One of Black's white elephant fleet.

Official Number: 164423
Port of Registry: Grimsby
Number: GY396
Name: Man O War
Callsign: GZQR
Type: Steam Trawler (Coal Burner)
Built: 04/37
By: Cochrane & Sons Ltd. Selby
Gross Tonnage: 516
Net Tonnage: 285
Length: 173.2 ft.
Beam: 28.6 ft.
Draught: 14.7 ft.
(Note: Measurements are in Feet and Tenths of Feet)
Engines: T 3cy.
By: Amos & Smith Ltd. Hull
Owner: Earl Steam Fishing Co. Ltd.
Manager: Sir Alec Black; Bart
Comments: Admiralty Service FY104; Hired as A/P trawler 09/39-02/07/45; Armament 1-4in; to Hull as H181 for Hellyer Bros. Converted to oil burning 07/53
Fate: Scrapped 1963.  copyright Jelsoft Enterprises Ltd.

http://www.navy.gov.au/sites/default/files/documents/1089-1216.pdf 

This is the link to the Admirality Orders for the Man o' War Rishton adopted minesweeper (page 8)