1866, Battle of Ridgeway Opposite Buffalo, New York By Fenians Versus Canadians, Arrest by Royal Irish Constabulary of Patrick O’Leary Allegedly Involved and Wounded and Creedon in Bantry.
Skibbereen & West Carbery Eagle; or, South Western Advertiser 13 April 1867

Skibbereen & West Carbery Eagle; or, South Western Advertiser 08 December 1866
It is possible to trace involvement in political agitation from the Whiteboys, Anti-Tithe, Repeal, Fenians, Irish Parliamentary Party and the Various Nationalist factions to Present Day politics going through families.
The District Inspectors of the RIC submitted monthly local reports to Dublin Castle. They are extant and available in Kew, in the UK.
https://en.wikipedia.org/wiki/Battle_of_Ridgeway
Further Arrests in Bantry:

