General Notes

In 1871 married to Ellen Jones with a 1 year old son Owen.  In 1881 census he is a slate quarry manager with 4 children, not including Owen.

Wikipaedia entry on the Cwt y Bugail quarry has the following:
Around 1877 the quarry was taken over by Owen Williams from the nearby village of Penmachno. He ran Cwt y Bugail for the next thirty years and was the great-grandfather of Owen Glyn Williams who managed the quarry in the 1980s.
Production of slate peaked in 1877 and began dwindling significantly from 1884 onwards. By 1887 the quarry was closed, but Owen Williams formed a worker's cooperative and began working the quarry in 1888. The cooperative purchased the quarry from the Bugail Slate Quarry Co. for a nominal fee in 1892 Modest production with 60 men employed continued until 1898 when another gradual decline set in. In 1908 a rock fall in the quarry caused the company to fall into debt and it went into receivership in 1899. The receiver sold the quarry to Cadwalader Owen Roberts of Betwys y Coed for a nominal sum.