He was the eldest son of Victor Bruce, 9th Earl of Elgin and Lady Constance Carnegie.
[1] He had been a captain in the Forfar and Kincardine Royal Garrison Artillery (Militia), and when the Territorial Force was created in 1908 he became Commanding officer of the Highland (Fifeshire) Heavy Battery, RGA with the rank of Major, a position that he held at the outbreak of World War I.
[4] The couple had six children: He was made a Knight of the Thistle (Scotland's premier order of chivalry) on 3 June 1933.
[2] After the formation of the Scottish Home Guard in January 1941, Bruce was made commander of No.
[6] As a Colonel in the Territorial Reserve the Earl held a number of honorary colonelcies in the Territorial Army and Canadian Militia: On October 29, 1958, during the Dedication of the California Masonic Memorial Temple at 1111 California Street in San Francisco, Lord Elgin, then senior past grand master of the Grand Lodge of Scotland presented on its behalf a gift of a marshal's baton made of Scottish Oak to the Grand Lodge of California F.&A.M.. California Grand Marshal John T. Bond used this baton for the first time to escort Lord Elgin back to his seat.