As previously mentioned:
1842--Dr. Robert Ball Colhoun, of Belmont, Forkhill, son of the late William Colhoun, Esq. of Co. Donegal, married to Sophia Elizabeth Macklin of Essex.
Marriage took place at St. Thomas Church, Dublin.
His son, Robert George Cunningham Colhoun, gent., m. 1879 to Millicent Sophia Ovington Lepper, dau of William Harper Lepper. Witnesses were William James Macklin Colhoun and Macaulay Higginson Lepper, Millicent's brother.
1901 census Robert and Millicent, with their children, living at 18 Islandbridge, W. Side, New Kilmainham, Dublin
Robert Colhoun, head, railway manager, b. Armagh, aged 57.
Millicent, aged 47, b. Belfast.
Elsie Constance, aged 25
Millicent Kathleen, aged 24
Florence Georgina, aged 23
George William, aged 21, railway official
Alice Maud, aged 20
Charles Hargrave, aged 16.
Muriel Gwendoline, aged 11
Florence Georgina m. 1903 to Edmund Aldexander Dobbs, gent., of Greystones, Co. Wicklow, son of Robert Cathcart Dobbs, JP, CE.
Millicent Kathleen married in 1910, aged 28, to Herbert Edwin May, aged 28, son of William Heath May, a commercial traveller. Witnesses to marriage were George William Colhoun and Elsie Constance Colhoun.
1911 census--now living at 22 Inchicore Rd., North side, New Kilmainham, Dublin
Millicent, 56, now a widow.
William, 30, railway official.
Maud, 29
Charles, 25, railway official
Muriel, 21