The Ulster Plantation Baronial map of 1609 depicts the name as
Malachmore. The Ulster Plantation grants of 1611 spell the townland name as
Mullamore. The 1641 depositions spell it as
Molloughmore. The 1652 Commonwealth Survey spells the townland as
Mullaghmore. The 1665 Down survey map depicts it as
Mullaghmore. A 1669 grant spells it as
Mullaghmore.
William Petty's 1685 map depicts it as
Mullaghmore. William Sheridan was the chief of the Sheridan Clan in County Cavan. He was the son of the previous chief, Hugh Duff O'Sheridan of Togher townland, Kilmore parish, County Cavan. William was the ancestor of the famous Sheridan theatrical family. William died sometime before 1638 leaving two sons, Owen and Patrick (of
Raleagh townland, Kildallan parish). Owen Sheridan succeeded to his father's lands and this was confirmed by a grant to him by
Charles I of England dated 6 March 1637. Owen's son Denis was born in 1612 and became a Catholic priest in charge of Kildrumferton parish, County Cavan. He later converted to Protestantism and on 10 June 1634
William Bedell, the Protestant Bishop of Kilmore, ordained him as a Minister of the Church of Ireland and two days later Denis was collated to the Vicarage of Killasser in the Diocese of Kilmore. Denis had several children, including
William Sheridan (Bishop of Kilmore and Ardagh) 1682-1691 (his son Donald kept up the Templeport connection by marrying Mrs Enery of Bawnboy);
Patrick Sheridan, Cloyne, Protestant
Bishop of Cloyne (1679-1682) and Sir
Thomas Sheridan (politician) Chief Secretary of State for Ireland (1687-1688). The aforesaid Owen Sheridan took part in the
Irish Rebellion of 1641. At Cavan, on 26 July 1642, Thomas Jones and his son William Jones stated-
Jones Will: Jones Deposed July 26, 1642. After the
Irish Rebellion of 1641 concluded, the townland was confiscated in the Cromwellian Settlement and the 1652 Commonwealth Survey lists it as belonging to William Madders & others, who were also listed as owners of the adjoining townland of
Greaghacholea. In the Hearth Money Rolls compiled on 29 September 1663 there were two Hearth Tax payers in
Mullaghmore- Sean O Banan and Owen McDonell. Part of the townland was later given in a grant dated 9 September 1669 from
King Charles II, to Arthur,
Earl Annesley, as
144 acres and 7 perches of profitable land and 60 acres of unprofitable land in the north-east part of Mullaghmore at a rent of £1-18s-10 1/2d per annum. The rest of the townland was included in a grant dated 7 July 1669 from
King Charles II, to John, Lord Viscount Massareene, which included 113 acres and 24 perches of profitable land and 46 acres and 16 perches of unprofitable land in ''''. In the Cavan Poll Book of 1761, there was one person registered to vote in Mullaghmore in the
Irish general election, 1761 - John Coulson, Esq. of Belmount, County Fermanagh.. He was entitled to cast two votes. The four election candidates were
Charles Coote, 1st Earl of Bellomont and Lord Newtownbutler (later
Brinsley Butler, 2nd Earl of Lanesborough), both of whom were then elected
Member of Parliament for
Cavan County. The losing candidates were
George Montgomery (MP) of
Ballyconnell and
Barry Maxwell, 1st Earl of Farnham. Absence from the poll book either meant a resident did not vote or more likely was not a freeholder entitled to vote, which would mean most of the inhabitants of Mullaghmore. The 1790 Cavan Carvaghs list spells the name as
Mullaghmore. Ambrose Leet's 1814 Directory states that the occupier of
Bilberry-hill was David Irwin. The Tithe Applotment Books 1823-1837 list twenty tithepayers in the townland. The Mullaghmore Valuation Office books are available for 1838.
Griffith's Valuation of 1857 lists fourteen landholders in the townland. ==Census==