Come across this in a book.
May be of help to people who are researching the Alexander family of Northern Ireland.
GENEALOGICAL AND HERALDIC
DICTIONARY OF THE LANDED GENTRY OF GREAT BRITIAN AND IRELAND
by Sir Bernard burke
Ulster Kings of Arms
in two pts- pt 1[year 1862]
ALEXANDER OF AHILLY
Alexander, Thomas Esq. of Frowick House Co.Essex, and of Ahilly, Buncrana, Co Donegal,high-sheriff of the last-named county in 1852; m Jane,eldest dau. of William Haig, Esq. of Westfield House, Doncaster, and has issue,
1/ Lesley-William, b 1841.
4// Edward-Merydeth Edgworth.
LINEAGE,- The Rev. Andrew Alexander, D.D.Presbyterian Minister, went from Scotland and settled in the North of Ireland, A.D. 1616/18???
He married Dorothea, dau, of Rev James Cauifeild, D/D., and dying circa 1641, left a son,
ANDREW ALEXANDER [attained by JAMES 11., 1689?], who married 1st, a dau of SIR THOMAS PHILLIPS, called Governor Phillips, and had a son and heir, JACOB; he married 2ndly, a dau, of the Laird of Hilles, and had a son, John, ancester of the Alexanders of MILFORD ,Co, Carlow, of London, of Portgle-none,Co, Antrim, of Forkill, co. Armagh, of Somerhill, Co.Kent, of the Earls of Caledon, and of the Baronets, Alexander. The eldest son,
JACOB ALEXANDER, Esq, of Newtownlimmavady, married 1692???, Margaret [or Jane], dau and heiress of John OLIVER, of The Lodge, Newtownlimmavady, cheif magistrate appointed to administer the oath of allegiance on the accession of WILLIAM and MARY, and had issue,
James of whom presently.
John, whose will is dated 1776.
Jacob, of Grainvillea.
The eldest son,
James Alexander, of Newtownlimmavady, merchant, who married Elizabeth Ross, of Newtownlimmavady, and had issue,
1//Lesley, of whom presently.????
2//John married Hester King, of Newtownlimmavady,
3//James, maj gen H.E.I.C.S., d. at Calcutta.
4//Oliver., d. s. p.
5//Jane, married Robert Ogilby, M.D.
6//Elizabeth, married to James Orr, of Gortin.
Mr Alexander [whoms will was proved 4 July 1786] was s. by his son.
Lesley Alexander, of Newtownlimmavady married Anna Simpson, of Armagh, and had issue;
1// John married Margaret, dau. of Maxwell, Esq., and had issue;
2//James, of Gortineason, Co, Derry.
3//Lesley, J.P and D.L , of Foyle Park; married 1835, Amelia Maria, dau. of Colonel Bates, but d. s. p.
4//Alexander, d. 1832
5//Thomas, now of Ahilly