Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,894 pages of information and 228,796 images on early companies, their products and the people who designed and built them.
formerly Phillips, George and Thomas
By 1814 John Thomas was bankrupt and the iron works at Pontymister together with a colliery at newbridge were offered for sale - detailed description given.
Probably became the Pontymister Iron Co