This is a pdf of a book length study of Thomas Anson, his travels, the development of his estate at Shugborough, Staffordshire, and his influence on the Greek Revival in the arts and ideas.
A brief portrait in his own words words and the words of those who knew him. I believe it gives a very true picture of his character.
Here are some video talks on related subjects:
A talk to the Temenos Academy 10/02/2020 on the philosophy of the Greek Revival, and the platonists James Harris, Floyer Sydenham, and Elizabeth Carter. For more on the 18thc Platonists go here.