Is the same chap. He attested for service in the 61st Brigade at Dublin.
"South Africa Medal 1877-79. With clasp '1879' (1637 Lce. Corpl. D. McDonald, 2-21st Foot)
Donald McDonald a native of Lochalan, Dingwall, Rosshire, Scotland described himself as a Clerk by occupation when he attested for service in the 61st Brigade at Dublin on 3 July 1878, aged 24 years, 9 months. Posted to the 2nd Battalion 21st Foot (subsequently became Royal Scots Fusiliers in 1881), he served in Natal Colony South Africa, February 1879-February 1880, during which the 21st served during the First Boer War and later the Zulu War for which latter he was awarded the South Africa General Service Medal with clasp. He was discharged on the termination of his second period of engagement on 10 July 1899"