The sea legend

All sailors in the world have stories to tell. Different ones, wet ones, salty stories, very stupid ones (that's the majority) and really good ones (which are mostly sad). Among the last sort, the funny stories, there is one that nearly all Irish and even English seamen know. It's an old story, maybe not as much a story as a legend. It concerns an excentric, old and highly useful Gentleman. The name of this man is O'Rourke. The more curious thing is that he has several different first names. All of them seem a bit unusual, and maybe that is why everyone and anyone who has ever called him for some reason would prefer to do so with his surname. As I said, he is an excentric man. He likes swimming along beside ships, even out on rough sea. For some reason he is very well capable of doing that despite his admirable age. I have also mentioned his being very useful. That's undoubtedly the reason why so many sailors call him when on journey. Although there must be always several people yelling for him at the same moment all over the world, he is always present to each of them and also there can be little doubt that it is really him in every single case.
Why, however, should sailors on sea (who surely have better things to do than to say the name of a curious man when sailing) call for him? The solution is very simple. He is the protector and patron saint of all those who are seasick. By the way, this includes all those who are seasick, not merely sailors. But no other people seem to really know his name and legend.
To explain his popularity with seasick travellers, I bid you to think clearly of a sailor or passenger who has become seasick and happens to find himself standing (or rather swaying) at the edge of the upper deck.
Perhaps holding his stomach with a slightly green complexion. And then he sees that kind and sympathetic Gentleman with his bowler hat swimming way down in the water. Of course, he knows instantly who this man is. The protector and saint of all who are seasick. And this is where his first name comes in. The suffering cannot remember the man's surname and so he calls out desperately to him with the first first name that comes into his mind. This name varies a lot. Sometimes the person will say, grunt or shout "Oh my", "Oh no" or simply "HHHHhhhhhh". This may not seem very pretty, but you must forgive an ill person. Then the famous Irish surname of the man, saint or legend suddenly comes into his mind. So as to put emphasis on it, he leans wide over the edge, gulps, draws breath and, while feeling an unpleasant rising of his stomach, desparately groans "Ooo'Roooouuuuuurrrrrke"...