Alexander Montgomery Carlisle, PC (8 July 1854 – 6 March 1926) brother-in-law to Viscount Pirrie, was one of the men involved with designing the Olympic-class ocean liners in the shipbuilding company Harland and Wolff.
In the design of the Olympic and the Titanic, he was responsible for the decor, the equipment and general arrangements, as well as the implementation of the davits system for the lifeboats.
[3] While working on the liners, Carlisle had some minor disputes with Lord Pirrie over the number of lifeboats required for a vessel of this size.
Pirrie, the chairman of Harland and Wolff, was satisfied that the number of lifeboats supplied more than met the board of trade regulations.
[5][6] Carlisle was appointed to the Privy Council of Ireland in 1907 by Edward VII, serving in the House of Lords with Pirrie.