Their adopted son James MacArthur is, like his mother, an actor, best known for playing "Danny Williams" on the American television series Hawaii Five-O.
His brother, John D. MacArthur, was an insurance-company owner and executive, and founded the John D. and Catherine T. MacArthur Foundation, the benefactor in the "genius awards".
MacArthur, Donald Alexander, Alexandria, Ont., was born on the 28th of October,.
Donald MacArthur, his great-grandfather, served under Cameron, of Lochiel, and took part at the battle of Culloden, when Prince Charles Stuart’s forces were defeated by the Duke of Cumberland; and his grandfather, CharlesMacArthur, served at a later date in suppressing the Irish rebellion.
CharlesMacArthur died when his son, Alexander, was very young, arid the latter was brought up by his brother John, who was an extensive lumber merchant at Kingston.