This family came over to Ulster from Ramsey, Isle of Man, early in the 18th century, having originally been of French extraction.
HUGH CASEMENT married, in 1740, Elizabeth, daughter of George Higginson, of Magheragall. Mr Casement died in 1797, having had issue,
1. GEORGE CASEMENT, a surgeon in the Royal Navy, married firstly, Elizabeth Montgomery, and had issue,
1. John Montgomery;He married secondly, Matilda Montgomery, and by her had issue,
2. William (Sir), KCB.
3. George, a major in the Army;2. ROGER CASEMENT, of Harryville, County Antrim, who married firstly, Catherine (d 1803), daughter of Julius Cosnahan, of Peel, Isle of Man, and had, with other issue [many missing including the link to the executed Roger David Casement],
4. Hugh, a lieutenant in the Army.
1. Thomas, of whom presently.Roger Casement married secondly, in 1819, Margaret, daughter of Andrew McQuitty, and died in 1832, having by her had issue,
2. Robert (Rev), of Harryville, Ballymena.
3. George;He left issue,
4. JOHN, his half-brother.
5. Julius (1830-1904), of Cronroe, Co. Wicklow, JP for counties. Antrim, Londonderry, and Wicklow; High Sheriff, 1877; educated at Trinity College Dublin; married in 1863, Maria Clarke, daughter of Rev Joshua Lacy-Bernard, Rector of Powerscourt.
1. Roger (1864-1917); High Sheriff of Wicklow, 1907; Lt.-Col. R.F.A; married, in 1898, Catherine Isabelle, daughter of Colonel CG Tottenham, of Ballycurry, County Wicklow (see that family);
2. Joshua Bernard (1868-94); Lieutenant, DLI;
3. Julius, Lieutenant, RA;
4. John Moore, (1877-1952) CB, of Cronroe, Ashford, County Wicklow:
Admiral; served in World War I; joined Royal Navy, 1891, Captain RN, 1915; Rear-Admiral, 1928-29; Vice-Admiral, 1931; Admiral, 1936; ADC to GEORGE V; educated at Fettes, and HMS Britannia; married, in 1905, Annie Myra, daughter of Francis Theodore Gervers, of Collingham Road, London.He left issue,
1. Margaret, married, in 1900, Captain RMB Otway-Ruthven, RGA (see that family), and died 1953, leaving issue,
2. May, died 1950;
3. Minie, died 1901.
1. Elizabeth, married 1854, Moore Smith.
2. Annie, married firstly, Thomas Luscombe, of Dublin; and 2ndly, Frederick H Ross, County Inspector RIC, of Crowpark, Trim.
The eldest surviving son,
THOMAS CASEMENT JP (1799-1874), of Ballee House, County Antrim; High Sheriff, 1874; married, in 1848, Dorinda Deborah, daughter of Thomas Abbot JP, of Mount Bellew, Co Galway; left issue, an only daughter and heiress,
CATHERINE COSNAHAN, of Ballee House, m. 4 March, 1869, Colonel Eldred Thomas Pottinger, RA
JOHN CASEMENT JP, of Magherintemple, County Antrim, High Sheriff, 1881, b 1825, m. 1stly, 6  Aug. 1849, Charlotte, daughter of Brabazon Newcomen, of Camla [Camlagh] House, Co Roscommon, and had issue,
1. Roger, of whom presently;The eldest son,
2. Brabazon Newcomen, MD
ROGER CASEMENT JP DL (1850-1928), of Magherintemple, County Antrim; educated at Royal School Dungannon, and Trinity College, Dublin; married, in 1877, Susanna, daughter of James Beatty CE; left issue,
1. JOHN CASEMENT DSO DL (1880-1944), of Magherintemple, Ballycastle, County Antrim; Captain, RN; served in World War 1; married, in 1916, ANNA BEATRICE, daughter of JFW Hodges, of Glenravel, County Antrim, and d.s.p.
2. Francis, DSO (1917), and Bar (1918), Major-General, RAMC; High Sheriff, Co Antrim, 1951; served in RAMC, 1907-41; in World War 1; NI Minister of Health, 1942-46; Chairman, Ulster Joint Committee; Order of St John and Red Cross Socirty from 1953; Member, Area Council, British Legion, 1954; Chev. Legion of Honour, 1915 (Craigtara, Ballycastle); born 1881, married, in 1916, Mabel Frances, eldest daughter of RF Harrison KC, of 17 Fitzwilliam Square, Dublin, and had issue.
3. Roger Hugh, P.W.D., India, b. 8 April, 1883, m. 29 April, 1911, Mary Katherine (Ballycastle, Co. Antrim), dau. of late Henry George Cowie, of Tiverton, Devon, and d. 2 March, 1924, leaving issue,
4. Robert James, of Vancouver, B.C., b. 19 Nov. 1884, m., and d. 15 June, 1946, leaving issue, two sons and one dau.
5. Edgar Reginald, formerly P.W.D., India (Coolgreany, Ballycastle, Co. Antrim), b. 13 Oct. 1886, m. 18 Aug. 1920, Grace Edith, widow of Frank Nairne Maclaran, I.A., and eldest dau. of late Col. William Henry Savage, C.M.G., of Cushendall, Co Antrim.
Patrick Casement OBE has been a member of the National Trust's Council since 1998 and was Chairman of the NT Northern Ireland Committee, 2000-2010.
He is a zoology graduate from Oxford and holds a masters degree in Ecology; farms a large beef and sheep farm; has previously served on the Northern Ireland Council for Nature Conservation and the Countryside.(Sir) Roger Casement was a cousin of Patrick Casement's grandfather.
Magherintemple House, near Ballycastle, County Antrim, is a house of ca 1875 in the Scottish-Baronial style, the seat of the Casement family, of which Mr Roger Casement - formerly Sir Roger Casement CMG - was a scion.
The Churchfield estate at one time comprised 3,312 acres.
An earlier, quite modest, house called Churchfield was described in 1835 as being a plain two storey dwelling, the property of the Casement family from 1790.
It was considerably enlarged in 1874-75 for John Casement, adding an austere Scottish-baronial block in Ballyvoy stone with gate lodge in matching style.
The grimness of the architecture is, to some degree, offset by the good high position of the house and its splendid views. The gardens are maintained. There is a walled garden on a slope, with a bog garden at the bottom.
The walled garden is fully planted up with vegetables, fruit and ornamental plants.
The present layout dates from 1973. There are both woodland and shelter trees. The gate lodge replaced an earlier lodge located on the opposite side of the gates.
Two small stone figures that are placed in the rockery in the garden are said to have come from Culfeightrin Church.
First published in December, 2010.