Mepụta ụdị nkebi ahịrịokwu a nke dị mgbagwoju anya Nna nna ya, bụ́ James Pridmore, hiwere ụlọ ọrụ West Glamorgan Collieries Ltd, bụ́ ụlọ ọrụ na - adịteghị aka nke rụrụ ọrụ nwa oge n'obere ebe abụọ a na - egwupụta ihe n'ime ime obodo Swansea (1919 - 1921).
N'ezie, ụdị ahịrịokwu dị mgbagwoju anya bụ "Nna nna ya, James Pridmore, guzobere West Glamorgan Coal Company, nke mere ka Heseltine zụlite ya na okomoko dị na Nke 1, Uplands Crescent (ugbu a Nke 5)".