Doyle bụ onye nkwado nke mkpọsa maka mgbanwe nke Congo Free State, nke onye nta akụkọ ED Morel na onye nnọchi anya Roger Casement duziri. N'afọ 1909, o dere Mpụ nke Congo, akwụkwọ nta dị ogologo nke ọ katọrọ ihe egwu nke ógbè ahụ. Ọ bịara mara Morel na Casement, ọ ga-ekwe omume na, ya na Bertram Fletcher Robinson, ha kpaliri ọtụtụ ihe odide na 1912 akwụkwọ akụkọ The Lost World. E wezụga Doyle, Robinson mebiri mgbe ọ ghọrọ otu n'ime ndị isi nke Easter pacifist movement n'oge Agha Ụwa Mbụ.
Bertram Fletcher Robinson