Jomo Kenyatta had eczema across his body. Kenyatta's imprisonment transformed him into a political martyr for many Kenyans, further enhancing his status. A Luo anti-colonial activist, Jaramogi Oginga Odinga, was the first to publicly call for Kenyatta's release, an issue that gained growing support among Kenya's anti-colonialists. In 1955, the British writer Montagu Slater—a socialist sympathetic to Kenyatta's plight—released "The Trial of Jomo Kenyatta", a book which raised the profile of the case. In 1958, Rawson Macharia, the key witness in the state's prosecution of Kenyatta, signed an affidavit swearing that his evidence against Kenyatta had been false; this was widely publicised.
Jomo Kenyatta manners" and a flexible attitude in adapting to urban situations dissimilar to the lands he had grown up in. A. R. Barlow, a member of the Church of Scotland Mission at Kikuyu, met with Kenyatta in Britain, later relating that he was impressed by how Kenyatta could "mix on equal terms with Europeans and to hold his end up in spite of his handicaps, educationally and socially." The South African Peter Abrahams met Kenyatta in London, noting that of all the black men involved in the city's Pan-Africanist movement, he was "the most relaxed, sophisticated and 'westernized' of the lot