The vessel was heading from Holyhead towards fishing grounds in Cardigan Bay when the accident happened.
BBC: Criticism of fishing boat St Amant after death off Anglesey
The Royal Welsh have marched through Holyhead to be granted the freedom of Anglesey.
The parade in Holyhead on Saturday was led by the regimental colonel, Brig Philip Napier.
Many of Holyhead's shops and businesses are also opening on Easter Monday to celebrate the event.
He has worked on a similar project for the Welsh government in Holyhead, in North Wales.
The designated area will also extend beyond Holyhead High School, Newry beach and Victoria Road.
BBC: NEWS | UK | Wales | North West Wales | Port adopts alcohol-free zone
Holyhead councillor Cliff Everett said that "inconsiderate behaviour" by drinkers was a serious problem.
BBC: NEWS | UK | Wales | North West Wales | Port adopts alcohol-free zone
The tragedy happened when the Kirkcudbright-based St Amant left Holyhead late at night, heading for Cardigan Bay.
Staff at Clyde, Solent, Holyhead and Stornoway will add the alternative names of beaches, rocks and waterways.
Thomas was born in Cardiff in 1913 and grew up as an English-speaking child in Holyhead on Anglesey.
Views are being sought to help shape the regeneration of Holyhead at a series of events on Thursday.
They will be used on the routes between Holyhead and Cardiff, as well as west Wales to Manchester.
BBC: NEWS | UK | Wales | North West Wales | Passenger 'shabby' trains anger
In 2009, Holyhead had the highest vacancy rate of any town in the UK with 39% of premises vacant.
Holyhead Port manager Captain Wyn Parry said it "very much welcomes" the application.
The 1000 GMT Stena Line ferry service between Holyhead and Dun Laoghaire was cancelled due to the arctic weather conditions.
Marine Current Turbines (MCT) and RWE npower Renewables are behind the scheme off Holyhead, between the Skerries and Carmel Head.
In north west Wales, a replacement bus service is taking rail passengers between Holyhead and Llandudno Junction due to flooding.
"It was difficult to keep the secret, but we had to, " said Heather Abbot, of Holyhead and Treaddur Bay Ladies Guild.
Stena said its Friday afternoon sailing from Holyhead was also in doubt.
Front runners for pride of place on the board include the Menai suspension bridge, South Stack lighthouse, Beaumaris castle and Holyhead port.
"Within one bay of the coastline there's between five and five-and-a-half tonnes of this oily substance, " said Holyhead Coastguard David North .
Delays are possible on Virgin Trains services between Crewe and Holyhead, due to an earlier landslide and flooding between Crewe and Chester.
Late last year plans for a truck stop for lorries using Holyhead on Anglesey were put forward by Conygar Investment Company PLC.
BBC: Deeside truck stop opens with 24/7 facilities for 50 HGVs
Cumbria-based Land and Lakes Ltd has plans for a 29-acre site at Penrhos near Holyhead and 360 more houses at a nearby site at Kinglsand.
Sandra Hall, assistant manager of the Beach Motel in Treaddur Bay, near Holyhead, Anglesey, said the bay's blue flag status was vital to the local economy.
BBC: Beaches' blue flags at risk due to wet summer pollution
In North Wales people are advised not to use rail services on the coastline between Chester and Holyhead, due to severe disruption and cancellation of services.
On the railway, First Great Western and Arriva Trains Wales services were operating normally, as was Cardiff Airport and ferry services from Pembrokeshire and Holyhead.
Then in March 2010 the Anglesey Aluminium factory at Holyhead was put forward by council leaders as one of six potential sites for a north Wales prison.
Holyhead Town County Councillor, Cliff Everett, said he hoped the new market would give the town a boost and attract more people to do their shopping there.
Meanwhile, North Wales Police are looking for a gang of 20 youngsters - girls as well as boys - who chased and attacked two men in Holyhead.
BBC: NEWS | UK | Wales | North West Wales | Port adopts alcohol-free zone
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