Commodore James Graham, 6th Duke of Montrose was a Scottish nobleman, naval officer, politician and engineer. He took the first film of a solar eclipse and is credited as the inventor of the aircraft carrier.

Douglas Beresford Malise Ronald Graham, 5th Duke of Montrose,, styled Marquess of Graham until 1874, was a Scottish nobleman and soldier. He was Lord High Commissioner to the General Assembly of the Church of Scotland from 1916 to 1917.