David "Dai" Price (1893-1996) -- Mine worker, Aberdare Extended Colliery. Recorded 20 January 1979. Part 2/4.
George Bainbridge - Electrical Engineer in the mines. Part 1 of 2. Recorded 20 April 1982.
Roy Vernon (1908-2004) - Mine undermanager. Recorded 16 February 1988. Part 1/2.
Jack Doherty (1920-2002) - Undermanager. Recorded 9 February 1988 - Part 3 of 3