He never married and was succeeded in his titles by his younger brother, Godfrey Macdonald, 3rd Baron Macdonald of Slate.
Baron | 3rd Rock from the Sun | William Cecil, 1st Baron Burghley | South Carolina's 3rd congressional district | Slate (magazine) | Slate | Robert Gascoyne-Cecil, 3rd Marquess of Salisbury | baron | Arthur Godfrey | Sacha Baron Cohen | Michigan's 3rd congressional district | Thomas Fairfax, 3rd Lord Fairfax of Cameron | Joseph Lister, 1st Baron Lister | Joey Baron | Godfrey Kneller | Robert Baden-Powell, 1st Baron Baden-Powell | Henry Brougham, 1st Baron Brougham and Vaux | Guy Carleton, 1st Baron Dorchester | 3rd United States Congress | Ramsay MacDonald | Jeanette MacDonald | Fernando Álvarez de Toledo, 3rd Duke of Alba | 3rd arrondissement of Marseille | Charles Godfrey Leland | Ross Macdonald | John A. Macdonald | William Wallace, Baron Wallace of Saltaire | William Tyssen-Amherst, 1st Baron Amherst of Hackney | James Mackay, Baron Mackay of Clashfern | Hercules Robinson, 1st Baron Rosmead |