[2] William T Douglass was Assistant Engineer to Thomas Edmond in the construction of the fourth Eddystone Lighthouse and then superintendent of work after Edmond was called to other work.
Douglass supervised the whole work of fitting up the internal arrangements of the new Eddystone Lighthouse, as well as dismantling and removing the upper portion of Smeaton's Tower, leaving the foundation intact.
[3] One of William Douglass's most impressive achievements was his supervision of the renovation and reinforcement of the Bishop Rock Lighthouse.
[4][5] Consulting engineer to the Governments of Western Australia, New South Wales, and Victoria.
Member of the Institution of Civil Engineers, and a Fellow of King's College, London.