The Fenian Brotherhood John O'Mahony & Michael Doheny. It was the precursor to Clan na Gael, a sister organisation to the Irish Republican Brotherhood IRB. Members were ordinarily known as "Fenians". O'Mahony, who was a Gaelic scholar, named his organisation after the Fianna, the legendary band of Irish warriors led by Fionn mac Cumhaill.
During the latter element of 1866 Stephens endeavoured to raise funds in America for a fresh rising refers for the following year. He issued a bombastic proclamation in America announcing an imminent general rising in Ireland; but he was himself soon afterwards deposed by his confederates, among whom dissension had broken out.
The Fenian Rising proved to be a "doomed rebellion", poorly organised and with minimal public support. near of the Irish-American officers who landed at Cork, in the expectation of commanding an army against England, were imprisoned; sporadic disturbances around the country were easily suppressed by the police, army and local militias.
After the 1867 rising, IRB headquarters in Manchester opted to assist neither of the dueling American factions, promoting instead a new organisation in America, Clan na Gael. The Fenian Brotherhood itself, however, continued to live until voting to disband in 1880.
In 1881, the Delamater Iron agency in New York.