Mr David Blair

Mr David Blair had been appointed as second officer of the Titanic. He had been with the ship when she sailed on her trials and on the journey from Belfast to Southamptomn

'Unfortunately whilst in Southampton, we had a reshuffle amongst the Senior Officers. Owing to the Olympic being laid up, the ruling lights of the White Star Line thought it would be a good plan to send the Chief Officer ot the Olympic, just for the one voyage, as Chief Officer of the Titanic, to help, with his experience of her sister ship. This doubtful policy threw both Murdoch and me out of our stride; and, apart from the disappointment of having to step back in our rank, caused quite a little confusion Murdoch from Chief, took over my duties as First I stepped back on Blair's toes, as Second, and picked up the many threads of his job, whilst he - luckily for him as it turned out - was left behind. The other officers remained the same. However, a couple of days in Southampton saw each of us settled in our new positions and familiar with our duties.'
Lightoller (1935)

In his rush to depart the ship on 9 April, Blair took away with him the key to the crow's nest telephone and he also seems to have stowed the lookout's binoculars in his cabin. Lightoller was unaware of this when he took over and Frederick Fleet mentioned to the American Inquiry that they had been unable to find them.

In 1914 Blair was aboard the Oceanic with Lightoller during World War I when she ran aground. Blair was the navigator at the time and was made to shoulder the blame at the subsequent court martial.