File contains Gwynfor Evans' election addresses and posters for the 1966 Carmarthen by-election, along with an official notice of poll, copies of congratulatory telegrams from Saunders Lewis and Lewis Valentine and a copy of congratulatory letter from D. J. Williams.

File contains newspaper cuttings relating to the Carmarthen by-election, 1966.

File contains posters, flyers and copies of newspaper articles commemorating Gwynfor Evans' victory in the 1966 Carmarthen by-election.