In the mid-1760s he moved to London, where he entered the service of a firm of furriers, to whose business he ultimately succeeded.

[1] He had from boyhood studied Welsh literature, and later devoted time and money to its collection.

[1] Jones was the principal founder of the Gwyneddigion Society in London in 1770 for the encouragement of Welsh studies and literature; and in 1805 he began a miscellany, the Greal, of which only one volume appeared.

[1] He died in 1814 at his business premises in Upper Thames Street, London, and was buried in the churchyard of All-Hallows-the-Less.

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