Did a google search for Swan of Clady and came up with this.
July 7 1857 in Mill Row Church, Antrim, by the Rev. C. Morrison, Hugh Swan, Esq.,Clady, to Matilda, daughter of the late John Dickey, Esq., Lowpark, Cullybackey.
Now John Dickey died in 1854 and I have two unknown daughters which sounds like one maybe Matilda.
HE BELFAST CHRONICLE WEDNESDAY MORNING APRIL 12, 1854
OBITUARY– JOHN DICKEY, ESQ. OF CULLYBACKEY, CO. ANTRIM
Died at Antrim, on Friday, the 31st March, John Dickey, Esq., Cullybackey, in his 88th year, having been born on the 21st February 1767. he was representative of his family and name, nor for upwards of 200 years residents of Antrim and Derry counties. His more immediate ancestors were natives of Ayrshire, N.B., one of whom settled early on the Ulster plantation. John Dicke or Dickie, married a daughter of Hyndman, of Myroe, Country Derry, also from Scotland, and sister of Captain Hyndman, in command of the guard who fired the first shots on the Earl of Antrim’s regiment, Dec., 1688, on the closing of the gates of Derry. This John was in Colonel Phillip’s detachment, afterwards called the Coleraine regiment, the first that marched to garrison the city of Derry. He was considered too old to bear the siege, was afterwards driven under the walls, and had his house at Ballymully, near the Roe-water, burned by the army of James on its retreat from Derry. His eldest son Adam acquired Ballydonellan, by his wife Janet, only child of James Cuik, from Fife, N.S., her mother was daughter of the ruined family of O’Mulchullen, of the line of Manus Reigh, by his wife, daughter of O’Neill of Ballydonellan, whose lands were attainted temp. chalres II., on pretext of his taking up arms in 1641 – 41, and confirmed to the Edenduffcarrick family, and by the ancestor of the present venerated and sincerely respected Lord O’Neill, regranted at a nominal rest to James Cuik, O’Mulchullen’s son-in law.
After the resolution of 1688 Adam Dickie kept concealed in his house at Ballydonellan two priests named O’Neill and O’Mulchallen, much persecuted by those in power. His house was searched, but the priests were not found. They used as a mod of concealment meal barrels, out of which one end was taken, and on a false head was placed a few inches of oatmeal; these were put over the priest’s when an alarm was given, and in a store room amongst others no suspicion was excited. He nominally took lands for his Catholic neighbours to evade the penal laws, and entered largely into the linen trade, then encouraged by the government, as a sot off against the destruction of the woollen manufacture. He and his wife passed 74 years a married couple, and were buried with his father-in law in the old O’Neill burying place at Duneau, with the Irish cry, as others of his descendants were to a recent period, though Presbyterians. The priests publicly blessed Adam Dickie and his descendents for seven generations.
The eldest son of Adam and Janet was John Dickie, of Ballydonnellan and Cullybackey, which he purchased to carry out the linen trade in the most extensive manner then known; and by him, at Lowpark of Cullybackey, were erected the first bleach mills on the river Maine. John’s eldest son, by his first wife Martha, daughter of J. Hill, of the Hills of county Antrim, also Scottish, was the late Adam Dickey, Esq. Of Cullybackey, who died in 1827 at 95, and who by his wife Elizabeth, daughter of the late David Graham, of an ancient Scottish family, whose ancestor married a daughter of the Colville family, afterwards of Galgorm and Newtownards. From a younger brother of David’s of the Sugarhouse and Graham’s\entry, Belfast, derive maternally the Fulton’s, Caldbecks of Lisburn, and others. The eldest son of Adam, by his wife Elizabeth was the deceased John Dickey, who was highly esteemed by all who knew him.
Like his predecessors, he was a Presbyterian, and an elder in the congregation of Cullybackey. By his wife Rose, daughter and sole heiress of the late William McNaghten, Esq. Of Ballyreagh, Oldstone, county Antrim and his wife Dorothy Major, he has left two sons – the elder Adam, the younger William McNaghten Dickey – both of whom are married and have issue; also, three daughters and several grandchildren.
The respectable families of New York, U.S., Hillhead, Dunmore, Ballymena, Hollybrooke, Millmount, Randalstown, Myrtlefield, and others – established by the younger sons of this family – are too well known and respected to need any notice here; and without including the numerous families of t he gentry, with whom they allied themselves, daughters of the Dickeys, whose descendants still remain, married Forsythe of --- Newton; Galt from Scotland of Coleraine; Galloway of Tully; McRorie of Ballylurgan; Campbell of Ballygawie; Hudson of Aboghill and Portglenone; Hogg of Lisburn; Barnet of Moira, Besfast, and India; Mitchell of Newgrove and Belfast; Captain Drake, R.N. of Bellaghey; Walker of Drumane and Derry county; Gillilan of Collon; Tod of Priestland; Diek of Garry and Ballymoney; Davison of Drumourne; Swan of Clady; Corond on Down’ Coilonel Monro of --- Inverness, N.B., and India; Nelthorpe of --; Bathurst of --, Baltimore, and E.I.C.S.; McAuley of Crumlin; McKillop, R.N., of Ballygarvie; Major of Creggan, &c.,&c., ; and others in Ireland, Scotland, America, and India, whose descendents comprise a vast connexion too extensive to enumerat
Hope this helps Kathy