Compañía Unida de Irrigación del Chubut.
Tystysgrif cyfranddaliadau yng nghwmni cydweithredol dyfrhau Y Gaiman, Chubut, Patagonia, Yr Ariannin, yn enw Aaron Jenkins, 5 Medi 1934, wedi ei harwyddo gan John ap Hughes, Robert Evans a Myrddin Griffith.
Kenneth E. Skinner Research Papers,
Research papers of Kenneth E. Skinner, 1911-1979, mainly notes, photocopies and manuscript and typescript transcripts of unpublished material collected by Dr Skinner while undertaking research in Britain and Argentina for his doctoral thesis 'The relationship between the Welsh colonies in Chubut and the Argentine government'; printed material and periodicals, 1921-1979; and a photograph album of views of Chubut.
Skinner, Kenneth.
A collection comprising correspondence, legal papers, press cuttings and other material relating to the Wladfa Gymreig in Patagonia, including material relating to Cwmni Masnachol Camwy; journals of Llwyd ap Iwan and an account by him of the Chubut Valley.
Mihangel ap Iwan, d. 1944
Papurau, 1965-2010, gan gynnwys casgliad o lythyrau a chardiau post o'r Wladfa, yn bennaf oddi wrth Mrs Elisa Dimol de Davies, Trelew, at y rhoddwr a'i deulu.
Nodiadau, rhaglenni, taflenni, a chyfnodolion Cymraeg a Saesneg, 1965, a grynhowyd gan Dr Marshall Lloyd, yn ymwneud â'i ymweliad â Phatagonia ar achlysur dathlu canmlwyddiant Y Wladfa Gymreig. = Notes, pictures, programmes, leaflets, and Welsh and Spanish periodicals, 1965, accumulated by Dr Marshall Lloyd, relating to his visit to Patagonia during the centenary celebrations of the founding of Y Wladfa, the Welsh colony.
Lloyd, J. H. Marshall.