Here's that part from the article:
Crew often had at least one cat on board each ship to help keep the rat population down. It's said that there was a cat with young kittens aboard the sea trials of the Titanic but when the ship arrived in Southampton from Belfast, she was seen disembarking. Up and down the gangplank she went, retrieving one kitten at a time that she deposited on the dock. She and the kittens quickly disappeared and it was later said that had some sort of premonition that the voyage wasn't going to be a good one.
Also a ping to those on the RMS Titanic interest list for this story.
Above, a picture of some of the dozen dogs reported to be aboard Titanic.
