My 95 year old grandmother has just told me that her first cousin Willie Lowe was on board Titanic. He was in his teens and employed in some capacity. As she was a baby at the time she doesn't know much about him except he was from Southampton.
Hallo, Jayne. Harold Lowe, the ship's 5th officer, was 29 years old. There was no other crew member or passenger called Lowe. Perhaps Willie was working on some other liner at the time. As you know, recollections over a long period of time are often imperfect.