Have you considered that Timoney may be 'black' Irish?
Timoney is white.
Ask a Catholic Irishman about the 'black' Irish. But stand back before he answers, as you may get a torrent of words which won't exactly be kind.
I think you're thinking of the Black and Tans, named for the colours of their uniforms.
The "Black Irish" were supposedly decendents of the dark complexion Spanish survivors of the Armada. I've heard Black Irish refer to themselves as "Black Irish," so I'm not sure the term is derogatory.
It is not a derogatory term in the least. And, though the legend is creative, it is wrong. Gentically, in many parts of Ireland and in Welsh and and western English lands, there is a strong preference towards darker looking, "heavier features". These people, thought still having lightly complected skin, have dark hair and eyes and some fetures of the forehead, nose and jaw-line that look somewhat more mediterranian than Northern European.