Pictures unveiled at Treuddyn Village Hall on Saturday featured photographs from Urdd events over the past 90 years.
Mr Williams said the Urdd had to be careful as it was expected to be an inclusive movement.
The 2013 Urdd Eisteddfod will be held in Cilwendeg, just south of Cardigan.
The 2013 Urdd Eisteddfod will be held in Cilwendeg, just south of Cardigan, from 27 May to 1 June.
Major events including the Royal Welsh Show and the Urdd Eisteddfod were cancelled.
The size of the Urdd festival, and the fact it involves children travelling from across Wales, has led to the immunisation warning.
Urdd chief executive Efa Gruffudd Jones said organisers were in constant contact with PHW to discuss the best way of advising visitors.
Gary Lewis, who was sports officer for the Urdd at the time, said Ramsey was only six so was too young to play.
Thousands of adults and children planning to attend the Urdd Eisteddfod next month are being urged to make sure they are vaccinated against measles.
Ramsey's talent was first spotted when his mother took him to a football session in Caerphilly run by the Urdd Welsh language youth movement.
Efa Gruffudd Jones, chief executive of Urdd Gobaith Cymru, said: "It is great to have a record of the early history of the Urdd".
The size of the Urdd festival, and the fact it involves children travelling from across Wales - with 15, 000 competitors - has led to the immunisation warning.
The Urdd claims to be Europe's largest arts youth festival, with thousands of young people due to take part in Welsh language music, dance and other cultural activities.
"What is great is that he's never forgotten he started at the Urdd and he always gives us a mention, " said Mr Lewis, who is now the Urdd's national sports development manager.
Jennifer Stewart, head of the Heritage Lottery Fund Wales, added: "As well as encouraging local residents to explore their past, this project will provide a permanent record of Treuddyn's special connection with the Urdd".
"What we suggest is that everyone who is going to compete in the Urdd, or will be visiting, has checked with their GP before they go that they have had two MMR jabs, " she added.
They will also consider other sources of income for the eisteddfod, sharing resources with the Urdd youth organisation, increasing visitor numbers, including among non-Welsh speaking families, and better assistance to new and English speaking visitors.
They will also consider other sources of income for the eisteddfod, sharing resources with the Urdd youth organisation, increasing visitor numbers - including non-Welsh speaking families - and better assistance to new and English-speaking visitors.
The Urdd Eisteddfod claims to be Europe's largest arts youth festival, with thousands of young people from across Wales visiting the event every year for music, dance, performance, art and poetry competitions in the Welsh language.
Meanwhile, teachers at Cardiff's Fitzalan High School have told BBC Wales they will be withdrawing from all competitions at this year's Urdd National Eisteddfod in Cardiff as a result of another poem - called Bwyd Od (Odd food).
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