The National Archives organised a family day at the Wrexham Miner’s Project explaining how they collated all the Gresford material and teaching people how to preserve their own histories for future generations.
Natalie Brown from the National Archives said: “A box that isn’t airtight, that’s clean, can do a world of wonders.
“Keeping things in a stable environment, taking things out of the attic, out of the basement, into the main part of the house, that’s really helpful.
“And an object without a story is sort of out of context. So really record those stories and the meanings, like who’s in the photos, what was happening on the day, that’s really important.”