Career
Blennerhassett did not stand for the Dáil again, but after his 1973 defeat he was nominated by the Taoiseach Liam Cosgrave to the 13th Seanad. He was re-elected in 1977 to the 14th Seanad and in 1981 to the 15th Seanad. A previous John Blennerhassett was Chief Baron of the Irish Exchequer from 1621-1624.
He belonged to the Fermanagh branch of the family and was a cousin of Robert Blennerhassett who founded the Kerry branch.
He died in September 2013.
