Given prevailing views and existing laws on homosexuality, this material undermined support for clemency for Casement.
Debates have continued about these diaries: a handwriting comparison study in 2002 concluded Casement had written the diaries but this was still contested by some.
He was educated at the Diocesan School, Ballymena (later the Ballymena Academy).
He traveled to Europe to fight as a volunteer in the Hungarian Revolution of 1848 but arrived after the Surrender at Világos.The family lived in England in Worthing in genteel poverty; Roger's mother died when he was nine.Casement worked on a survey to improve communication and recruited and supervised workmen in building a railroad to bypass the lower 220 miles of the Congo River, which is made unnavigable by cataracts, in order to improve transportation and trade to the Upper Congo.During his commercial work, he learned African languages.His father, Captain Roger Casement of the (The King’s Own) Regiment of Dragoons, was the son of a bankrupt Belfast shipping merchant, Hugh Casement, who later moved to Australia.
Captain Casement had served in the 1842 Afghan campaign.Roger Casement's brother, Thomas Hugh Casement (1863-1939), helped to establish the Irish Coastguard Service.He drowned in Dublin's Grand Canal on 6 March 1939. Casement worked in the Congo for Henry Morton Stanley and the African International Association from 1884; this association became known as a front for King Leopold II of Belgium in his takeover of the Congo Free State.He was arrested, convicted and executed for treason.Before the trial, the British government circulated excerpts said to be from his private journals, known as the Black Diaries, which detailed homosexual activities.Using violence and murder against men and their families, Leopold's private Force Publique had decimated many native villages in the course of forcing the men to gather rubber and abusing them to increase productivity.