| Location
Mullaghduff is a townland of 331 statute acres, 2 roods and 24 perches about four miles west of Cullyhanna. It is bounded on the north by Ballynarea, on the east by Kiltybane on the south by Drumlougher, and on the west by Muckno Parish in Co. Monaghan. In the Tithe Applotment Books of 1825 the total area of the townland is shown as 186 acres, 2 roods and 20 perches (Plantation Irish measure). Name of townland Mullach-dubh, "The dark ridge" (1) Valuation Although the decimalisation of the currency was introduced only in 1971, all of the valuations in the following table have been converted from £sd for convenience.
The 1837 Townland Valuation recorded only houses worth £5 or more a year. There were no houses of that valuation in the townland. Griffiths Valuation records the owner of the land as Walter McGeough Bond. Census of Ireland 1901 The Census enumerated 63 people in 14 households; a ratio of 4.5 people per household. The households occupied a total of 63 rooms; a ratio of 4.5 rooms per household and 1 people per room. One of the households had 8 rooms, four had six rooms, five had four rooms, three had 3 rooms, and one had two rooms. Four of the houses were thatched. Native Irish Speakers One of the households contained a native Irish speaker. He was James McArdle, farmer, 41, born in Co. Monaghan Population Decline The following table sets out the number of houses and population enumerated in the townland in each of the 11 Censuses held between 1841 and 1951.
In the period of 110 years, the number of households dropped by 66.7% and the population by 71.6%. Names of House and land Holders (2) The following table sets out the names of those who owned or rented houses and land in the townland at the time the official valuation record or population census was compiled. |
| 1766 | 1830 | 1864 | 1901 | 1935 | 1957 | 1974 |
| Households & | Households | Households | Households | Households | Households | |
| Lockart James | Bellew Christopher | Bellew Michael | Bailey Wallace | Bellew Patrick | Bellew Patrick S. | Bellew Patrick S. |
| McBride Widow | Ennis Robert | Finlay William | Bellew Michael | Halliday James | Halliday J. | Lockhart Leman |
| McBurney James | Ennis Robert & Jno | Gamble David | Crozier Samuel | Lockhart Elizabeth J. | Lockhart Leman | Lockhart Leman |
| McCormick Robert | Ennis Nath | Lockhart (Teacher) Samuel | Guldtrap Sarah | McArdle Annie | Lundie William J. | Lundie William J. |
| Porter Samuel Jun. | Gammell David | Lockhart Alexander | Lockhart Robert | McBurney David | McArdle Eugene | McArdle Eugene |
| Porter Samuel Sen. | Lochart David | Lockhart David | Lockhart Samuel | McBurney James | McBirney James | McBirney James |
| Revy (or Reny) Robert | Lochart John | Lockhart Samuel | Lockhart Sarah J. | McCullagh Samuel | McBurney David | McBurney David |
| Sleeth Thomas | McBurney Jno | McBirney David | McArdle James | Montgomery Mary E. | McBurney James | McBurney James |
| Sleeth William | McBurney Patt | McBirney James | McBirney David | Wiley Isabella | McCullagh Samuel | McCullagh Evelyn |
| Smith William | McBurney Robert Snr | McBirney James | McBirney William J. | McMahon Thomas | McMahon Thomas | |
| Summervil William | McBurney Robert Jnr | McBirney Samuel | McCullagh Samuel | Land | ||
| Wyly William | Mulligan John | McCullough James | Quinn Mary | Blackwood George | Land | |
| Porter James | Porter James | Wiley Elizabeth | Lundie John | Donaldson George | ||
| Porter Samuel | Wiley John | Wiley Joseph | McMahon Francis | |||
| Reney Widow | Wiley Joseph | |||||
| Wiley James | Wiley Thomas | |||||
| Wiley Thos & William | Wiley William | |||||
| Land | ||||||
| Blackwood George | ||||||