- Hume was on watch together with 4^th Officer McTavish on the Britannic at the time of the explosion.

- After being back in England for barely 3 weeks, Hume was appointed 1^st Officer on the Olympic.

- In 1901, the brand new Celtic rescued the four crewmembers of the 104-ton schooner A.M. McNichol. A life crew from the Celtic, with 3^rd Officer Hume in charge, had the men swiftly transferred to the Celtic.

- Whilst serving as 1^st Officer on the Olympic, on several occasions the Surgeon onboard was Dr. John C.H. Beaumont. Beaumont also was Surgeon aboard Majestic on at least one occasion when Hume was Chief Officer. Dr. Beaumont was senior surgeon aboard Britannic. Also onboard several of his voyages was Claude Lancaster, Purser onboard Britannic.

- Hume was 2^nd Officer on Olympic’s maiden voyage, serving together with 2 bridge Officers who would later perish on the Titanic; Captain Smith and Officer Murdoch. 

- When the Olympic had the collision with the HMS Hawke, Hume was onboard as her 2^nd Officer.

- Hume was one of the former Britannic crewmen who joined the Justicia after the sinking of Britannic. Others include Chief Engineer Fleming and Purser Claude Lancaster.

- On at least one occasion in 1921 while he was 1^st Officer on the Olympic, former Titanic Officer Herbert Pitman was also onboard, who was by then transferred to the Purser’s section.

- In 1928 he commanded the 56.600 ton White Star Line flagship – the Majestic. Sadly for him, the appointment was temporarily, it being for 1 voyage replacing the ‘normal’ captain.