John Bourke, 1st Earl of Mayo1 
He was created 1st Baron Naas of Naas, co. Kildare [Ireland] on 1 August 1776.1 He was created 1st Viscount Mayo of Monycrower, co. Mayo [Ireland] on 13 January 1781.1 He was created 1st Earl of the County of Mayo [Ireland] on 24 June 1785.1
Children of John Bourke, 1st Earl of Mayo and Mary Deane
- Lady Margaret Bourke1
- John Bourke, 2nd Earl of Mayo1 b. c 1729, d. 20 Apr 1792
- Most Rev. Joseph Deane Bourke, 3rd Earl of Mayo+1 b. 1736, d. 20 Aug 1794
- [S37] BP2003 volume 2, page 2653. See link for full details for this source. Hereinafter cited as. [S37]
Mary Deane1 
From 1726, her married name became Bourke.
Children of Mary Deane and John Bourke, 1st Earl of Mayo
- Lady Margaret Bourke1
- John Bourke, 2nd Earl of Mayo1 b. c 1729, d. 20 Apr 1792
- Most Rev. Joseph Deane Bourke, 3rd Earl of Mayo+1 b. 1736, d. 20 Aug 1794
- [S37] BP2003 volume 2, page 2653. See link for full details for this source. Hereinafter cited as. [S37]
Arthur Hill-Trevor, 2nd Viscount of Dungannon1 
He succeeded as the 2nd Baron Hill of Olderfleet, of Belvior, co. Down and Brynkinalt [I., 1766] on 30 January 1771.1 He succeeded as the 2nd Viscount of Dungannon [I., 1766] on 30 January 1771.1
Children of Arthur Hill-Trevor, 2nd Viscount of Dungannon and Hon. Charlotte Fitzroy
- Arthur Hill-Trevor, 3rd Viscount of Dungannon1 b. 9 Nov 1798, d. 11 Aug 1862
- Charles Henry Hill-Trevor b. 21 Sep 1801, d. 18 Sep 1823
- [S37] BP2003 volume 1, page 1176. See link for full details for this source. Hereinafter cited as. [S37]
James Hewitt, 4th Viscount Lifford 
He was educated at Christ Church, Oxford University, Oxford, Oxfordshire, England.3 He held the office of Sheriff of County Donegal in 1841.3 He wrote the book Ireland and the Irish Church, published 1842.3 He wrote the book Thoughts on the Present State of Ireland, published 1849.3 He held the office of Deputy Lieutenant (D.L.) of County Donegal.3 He succeeded as the 4th Viscount Lifford, co. Donegal [I., 1781] on 22 April 1855.3 He succeeded as the 4th Baron Lifford of Lifford, co. Donegal [I., 1768] on 22 April 1855.3 He held the office of Representative Peer [Ireland] between 1856 and 1887.3 He wrote the book A Plea for Irish Landlords, published 1867.3
Children of James Hewitt, 4th Viscount Lifford and Lady Mary Acheson
- Hon. Mary Anne Hewitt3 d. 27 May 1913
- Hon. Isabella Hewitt+3 d. 19 Mar 1924
- James Wilfrid Hewitt, 5th Viscount Lifford1 b. 12 Oct 1837, d. 20 Mar 1913
- Hon. Evelyn John Hewitt3 b. 19 Jul 1842, d. 4 Jul 1867
- Archibald Robert Hewitt, 6th Viscount Lifford+3 b. 14 Jan 1844, d. 22 May 1925
- Reverend Hon. Cornwallis Charles Hewitt3 b. 3 Mar 1847, d. 4 Sep 1889
- Hon. Edward Hewitt3 b. 31 Mar 1848, d. 4 Sep 1931
- Hon. Anne Eliza Hewitt3 b. c 1860, d. 5 Sep 1957
Children of James Hewitt, 4th Viscount Lifford and Lydia Lucy Wingfield Digby
- Hon. Lettice Lucy Hewitt+3 d. 13 Aug 1930
- Hon. Alice Anne Hewitt3 d. 11 Feb 1943
- Hon. William James Hewitt+3 b. 6 Apr 1856, d. 28 Oct 1948
- Hon. Georgiana Rosamund Hewitt+3 b. c 1858, d. 9 May 1887
- Hon. George Wyldbore Hewitt+3 b. 16 Nov 1858, d. 23 Apr 1924
Lady Mary Acheson1 
Her married name became Hewitt.
Children of Lady Mary Acheson and James Hewitt, 4th Viscount Lifford
- Hon. Mary Anne Hewitt4 d. 27 May 1913
- Hon. Isabella Hewitt+4 d. 19 Mar 1924
- James Wilfrid Hewitt, 5th Viscount Lifford3 b. 12 Oct 1837, d. 20 Mar 1913
- Hon. Evelyn John Hewitt4 b. 19 Jul 1842, d. 4 Jul 1867
- Archibald Robert Hewitt, 6th Viscount Lifford+4 b. 14 Jan 1844, d. 22 May 1925
- Reverend Hon. Cornwallis Charles Hewitt4 b. 3 Mar 1847, d. 4 Sep 1889
- Hon. Edward Hewitt4 b. 31 Mar 1848, d. 4 Sep 1931
- Hon. Anne Eliza Hewitt4 b. c 1860, d. 5 Sep 1957
- [S37] BP2003 volume 2, page 1609. See link for full details for this source. Hereinafter cited as. [S37]
- [S134] Heraldic Media Ltd., online http://www.cracroftspeerage.co.uk/, Patrick Cracoft-Brennan (Cracroft Peerage Database v5.2), downloaded 1 November 2006.
- [S145] George Naylor, The Registers of Thorrington (n.n.: n.n., 1888). Hereinafter cited as Registers of Thorrington.
- [S37] BP2003. [S37]
Archibald Acheson, 2nd Earl of Gosford1 
He was educated at Christ Church, Oxford University, Oxford, Oxfordshire, EnglandG.1 He held the office of Member of Parliament (M.P.) for County Armagh between 1797 and 1807.1 He succeeded as the 8th Baronet Acheson, of Market Hill [in Clonekearney], co. Armagh [N.S., 1628] on 14 January 1807.1 He succeeded as the 2nd Earl of Gosford [I., 1806] on 14 January 1807.1 He succeeded as the 3rd Viscount Gosford of Market Hill, co. Armagh [I., 1785] on 14 January 1807.1 He succeeded as the 3rd Baron Gosford of Market Hill, co. Armagh [I., 1776] on 14 January 1807.1 He held the office of Representative Peer [Ireland] between 1811 and 1849.1 He held the office of Lord in Waiting between 1831 and 1834.1 He held the office of Lord-Lieutenant of County Armagh between 1831 and 1849.1 He was appointed Privy Counsellor (P.C.) in 1834.1 He held the office of Captain Yeoman of the Guards between July 1834 and November 1834.1 He held the office of Governor of Canada between 1835 and 1838.1 He held the office of Captain Yeoman of the Guards between April 1835 and June 1835.1 He was created 1st Baron Worlingham of Beccles, co. Suffolk [U.K.] on 13 June 1835.1 He was appointed Knight Grand Cross, Order of the Bath (G.C.B.) in 1838.1 He held the office of Vice-Admiral of Ulster.1 He has an extensive biographical entry in the Dictionary of National Biography.3
Child of Archibald Acheson, 2nd Earl of Gosford and Mary Richardson
Children of Archibald Acheson, 2nd Earl of Gosford and Mary Sparrow
- Archibald Acheson, 3rd Earl of Gosford+1 b. 20 Aug 1806, d. 15 Jun 1864
- Lady Mary Acheson+1 b. 27 Jun 1809, d. 13 Mar 1850
- Lady Millicent French Acheson+2 b. c 1812, d. 29 Aug 1887
- [S37] BP2003 volume 2, page 1609. See link for full details for this source. Hereinafter cited as. [S37]
- [S145] George Naylor, The Registers of Thorrington (n.n.: n.n., 1888). Hereinafter cited as Registers of Thorrington.
- [S18] Matthew H.C.G., editor, Dictionary of National Biography on CD-ROM (Oxford, U.K.: Oxford University Press, 1995), reference “Acheson, Archibald, 1776-1849”. Hereinafter cited as Dictionary of National Biography.
Mary Sparrow1 
From 20 July 1805, her married name became Acheson. After her marriage, Mary Sparrow was styled as Countess of Gosford on 14 January 1807.
Children of Mary Sparrow and Archibald Acheson, 2nd Earl of Gosford
- Archibald Acheson, 3rd Earl of Gosford+1 b. 20 Aug 1806, d. 15 Jun 1864
- Lady Mary Acheson+1 b. 27 Jun 1809, d. 13 Mar 1850
- Lady Millicent French Acheson+2 b. c 1812, d. 29 Aug 1887
Robert Sparrow1
He lived at Worlingham Hall, Suffolk, EnglandG.1
Children of Robert Sparrow and Mary Bernard
- Brig.-Gen. Robert Bernard Sparrow+2 b. 15 Feb 1773, d. 1805
- Mary Sparrow+1 b. 14 Apr 1777, d. 30 Jun 1841
- Frances Sparrow2 b. 1 Aug 1779
John Theophilus Beresford

- [S37] BP2003 volume 3, page 4087. See link for full details for this source. Hereinafter cited as. [S37]
Major Rt. Hon. William Beresford1 
He held the office of Member of Parliament (M.P.) for North Essex between 1847 and 1865.1 He held the office of Secretary for War in 1852.1
Children of Major Rt. Hon. William Beresford and Catherine Heneage
- Frances Arabella Beresford1 d. 7 May 1924
- Lt.-Gen. Mostyn de la Poer Beresford1 b. 6 Dec 1835, d. 19 Aug 1911
- Maj.-Gen. Edward Marcus Beresford1 b. 11 Dec 1836, d. 14 Jan 1896
- [S37] BP2003 volume 3, page 4087. See link for full details for this source. Hereinafter cited as. [S37]
