Question: The death of which sitting member of the party formed in 1874 by Isaac Butt lead to the Dublin St Stephen's Green by-election, 1888?
Sentence (from "Dublin St Stephen's Green by-election, 1888"): However, in a bid to appeal to Ulster Presbyterians, the Irish Party leader Charles Stewart Parnell nominated Thomas Alexander Dickson, a Presbyterian who had been Liberal MP for Dungannon and County Tyrone, as candidate.
Relevant evidence: No