Thomas Andrews always made a point of sailing on the ship's maiden voyage with a garanteur group (I don't know the spelling,sorry). They would go through the ship and take notes of what was working and what could be improved upon. The guaranteur group consisted of 5 men, all perished. If anyone knew the Titanic inside and out it was Mr. Andrews, after checking the ship with Capt. Smith he immediatly knew it would not survive, he spent most of the night urging passengers into the boats and checking and closing portholes to help add even minutes to keep Titanic afloat. He had no intention of getting off the ship himself. He left a wife and daughter in Belfast.