The North Wales Quarrymen's Union was a trade union

Trade union

A trade union, trades union or labor union is an organization of workers that have banded together to achieve common goals such as better working conditions. The trade union, through its leadership, bargains with the employer on behalf of union members and negotiates labour contracts with...

 in the United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

.
It was founded on 27 April 1864 at the Queen's Hotel, Caenarfon after a month of discussions between quarrymen from Dinorwic and other supporters. Initially the union was not led by miners but radical Liberals who later became supporters of David Lloyd George

David Lloyd George

David Lloyd George, 1st Earl Lloyd-George of Dwyfor OM, PC was a British Liberal politician and statesman...

's Cymru Fydd

Cymru Fydd

The Cymru Fydd movement was founded in 1886 by some of the London Welsh, including J. E. Lloyd, O. M. Edwards, T. E. Ellis , Beriah Gwynfe Evans and Alfred Thomas. Initially it was a purely London-based society, later expanding to cities in England with a large Welsh population...

It merged with the Transport and General Workers' Union

Transport and General Workers' Union

The Transport and General Workers' Union, also known as the TGWU and the T&G, was one of the largest general trade unions in the United Kingdom and Ireland - where it was known as the Amalgamated Transport and General Workers' Union - with 900,000 members...

 in 1923.

See also

• List of trade unions
• Transport and General Workers' Union
  Transport and General Workers' Union
  The Transport and General Workers' Union, also known as the TGWU and the T&G, was one of the largest general trade unions in the United Kingdom and Ireland - where it was known as the Amalgamated Transport and General Workers' Union - with 900,000 members...
  
  
• TGWU amalgamations
• Slate industry in Wales
  Slate industry in Wales
  The slate industry in Wales began during the Roman period when slate was used to roof the fort at Segontium, now Caernarfon. The slate industry grew slowly until the early 18th century, then expanded rapidly until the late 19th century, at which time the most important slate producing areas were in...