He's about the right age, and shows an understanding and sympathy towards the shell-shocked soldier, suggesting he's seen it first-hand or suffered from it himself. His boat also flies the blue ensign, rather than the red, signifying he is an Royal Naval Reserve officer.
- He also shows knowledge of evasive maneuvers against attacking aircraft which are presumably not taught to every civilian who owns a boat. He may also have been in a commanding position since he handles the soldiers on his ship like he's used to it.
- He states he learned that from his son, an RAF pilot.
- Since he's based on Charles Lightoller, he was likely a Royal Navy officer.