Robert Briscoe (Jewish) was elected Lord Mayor of Dublin some time in the 50's or 60's.
Rabbi Isaac Herzog of Dublin also became the first Cheif Rabbi of Israel.
Intermarraige and immigration has pretty much reduced the number of Jews in Dubin to a few handful.
Old joke: "A Jew elected Mayor of Dublin? Only in America!"
Mervyn Taylor, the Minister for Equality and Law Reform in the last Government, was jewish too, if I remember correctly.
To your examples I would add an older one. Sylvester, one of the greates mathematicians of the XIX centuries could graduate from Oxford: although he fullfilled all other requirements, the very last one was the test of "rudimentary intelligence" --- a public acceptance of Jesus Christ as lord and savior. This is the only requirement that Sylvester failed.
He moved to... Dublin, to Trinity: clearly no less Christian than the English schools, Trinity was more open-minded.
Paranthetically I could add that troubles of that kind have kept up with Sylvester throughout his life until, at the end of it, he was invited to chair the first mathematics deprtment on the American soil. One more time the European loss became our gain: Sylvester founded the first Mathematics Department -- at Jogn Hopkins -- that graduated its first flock in 1870 or so (to wit).