 In 1907 Lord Overtoun was appointed Lord-Lieutenant of Dunbartonshire, a post he held until his death the following year.He was also a Deputy Lieutenant for Dunbartonshire and a Justice of the Peace for Dunbartonshire and Lanarkshire.In addition to his nephew, Lord Overtoun was also connected to the intelligence agent and 1950s MP for Rutherglen, Richard Brooman-White, although not a blood relative