3. Thomas Allan, Major 3d Light Cavalry, Bombay, who married Clara, daughter of J. Birdwood, judge, Bombay Civil Service, with issue - William, who died unmarried; and Allan Stanley, who died young. He died in 1856.
4. Duncan Proby, who married Cecilia Margaret, daughter of William Dudgeon, Edinburgh, with issue - three sons and four daughters. He died in 1884.
5. George Richard, who married Elizabeth, daughter of Thomas Scott, W.S., Edinburgh.
6. Robert Cleghorn, who married Ellen Maria, daughter of Colonel Flexman, Tasmania with issue - two daughters. He died in 1866.
7. Agnes Helen, who married Charles Garstin, of the Bengal Civil Service with issue - William Edmund, Under Secretary for State at Cairo, who married Mary Isabel North, London; Alfred Allan, Lieutenant-Colonel 77th Regiment; Helen Julia; Alice Margaret; and Mary Annette, who married the Rev. Gordon Crowdy, Sherfield Rectory, Basingstoke. Agnes Helen died in 1871.
8. Margaret Anne, who died young.
William sold the estate of Pitlundie in 1805 to Graham of Drynie.
He died in 1866, and was succeeded in Culbo by his eldest surviving son,
V. WILLIAM ORD MACKENZIE, now of Culbo, M.D., Deputy-Inspector-General of Army Hospitals. He married Mary Susan, daughter of the late Henry Holmes, London, with issue -
1. Montague Allan-Ord, who married Frances Gordon, daughter of the Rev. James Rennie, Glasgow.