The floods which hit Ruthin and St Asaph earlier this month caught many by surprise but residents on the Glasdir estate were given warning thanks to local postmen.
An on duty-postman summoned help from some of his colleagues to try to save valuables and check people were ok.
Today, Welsh Secretary David Jones went back to say a personal thank you. Ian Lang was with him.
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Passengers being urged to check before they travel as upgrading work begins between Cardiff and the Severn Tunnel.
Over 40,000 people in the UK have young onset dementia. One charity says there needs to be more support for people in Wales under 65.
It has since apologised and removed the Tweet, which included the potential customer's name, email address and phone number.