Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,101 pages of information and 233,633 images on early companies, their products and the people who designed and built them.
From 1794 – 1797, he was Engineer of the Montgomery Canal. The Vyrnwy Aqueduct and Berriew Aqueduct both caused significant difficulties, and Dadford resigned from the project. He was succeeded as Engineer of the canal by his father.