- Dufferin and Ava
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1st Marquess of (Frederick Temple) b. 21 Jun 1826, d. 12 Feb 19022nd Marquess of (Terence John Temple) b. 16 Mar 1866, d. 11 Feb 19193rd Marquess of (Frederick Temple) b. 26 Feb 1875, d. 21 Jul 19304th Marquess of (Basil Sheridan) b. 6 Apr 1909, d. 25 Mar 19455th Marquess of (Sheriden Frederick Terence) b. 9 Jul 1938, d. 29 May 1988Marchioness of (Brenda) d. 17 Jul 1946Marchioness of (Florence) d. 14 Apr 1925Marchioness of (Hariot Georgina) b. 5 Feb 1843, d. 25 Oct 1936Marchioness of (Maureen Constance) b. 31 Jan 1907, d. 3 May 1998Marchioness of (Serena Belinda Rosemary) b. 25 Mar 1941, d. 26 Oct 2020
- Dufferin and Clandeboye of Ballyleidy and Killyleagh
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10th Baron, co. Down (Francis George) b. 20 May 1916, d. 13 Nov 199111th Baron, co. Down (John Francis) b. 18 Oct 1944
- Dufferin and Clandeboye
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Baroness (Anne Dorothea) b. c 1774, d. 28 Mar 1865Baroness (Elizabeth) b. c 1778, d. Jul 1843Baroness (Hariot Georgina) b. 5 Feb 1843, d. 25 Oct 1936Baroness (Helen Selina) d. 13 Jun 1867Baroness (Margaret) d. 1999
- Dufferin and Claneboye of Ballyleidy and Killyleagh
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1st Baroness, co. Down (Dorcas) b. 1726, d. 8 Feb 18072nd Baron, co. Down (James Stevenson) b. 8 Jul 1755, d. 8 Aug 18363rd Baron, co. Down (Hans) b. Oct 1758, d. 18 Nov 18394th Baron, co. Down (Price) b. 6 May 1794, d. 21 Jul 18415th Baron, co. Down (Frederick Temple) b. 21 Jun 1826, d. 12 Feb 19026th Baron, co. Down (Terence John Temple) b. 16 Mar 1866, d. 11 Feb 19197th Baron, co. Down (Frederick Temple) b. 26 Feb 1875, d. 21 Jul 19308th Baron, co. Down (Basil Sheridan) b. 6 Apr 1909, d. 25 Mar 19459th Baron, co. Down (Sheriden Frederick Terence) b. 9 Jul 1938, d. 29 May 1988
- Dufferin
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1st Earl of, co. Down (Frederick Temple) b. 21 Jun 1826, d. 12 Feb 19021st Viscount, of Claneboye, co. Down (Frederick Temple) b. 21 Jun 1826, d. 12 Feb 19022nd Earl of, co. Down (Terence John Temple) b. 16 Mar 1866, d. 11 Feb 19193rd Earl of, co. Down (Frederick Temple) b. 26 Feb 1875, d. 21 Jul 19304th Earl of, co. Down (Basil Sheridan) b. 6 Apr 1909, d. 25 Mar 1945Countess of (Hariot Georgina) b. 5 Feb 1843, d. 25 Oct 1936Sheriden Frederick Terence of co. Down b. 9 Jul 1938, d. 29 May 1988
- Duffett
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Catharine b. 1835, d. 1919Charles Henry d. 1981Christopher Charles Biddulph b. 23 Aug 1943Daniel Charles William Biddulph b. 14 Jul 1977Francis b. 1798, d. 1853Leonora b. 11 Nov 1911Mary b. 1801, d. 1870Petronella Margaret Elizabeth b. 30 May 1947Samuel Owen Salisbury b. 2 Apr 1975
- Duffey
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Mary Ann Henrietta b. 6 Oct 1836, d. 7 Jun 1914
- Duffield
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Adela Mary Lavina d. 1916Christine Mary b. 1921, d. 1990Clare Mary b. 29 Jul 1964Clarice Mily b. 1922Elaine Josephine b. 1946Eliza Jane b. 8 Oct 1852, d. 26 Apr 1924Elizabeth d. 1838Fanny Esther d. 13 Dec 1923Florence Marion d. 6 Apr 1943Francis d. a May 1793Henry b. 20 Aug 1825, d. 28 Apr 1863Isabella b. bt 1639 - 1641, d. Apr 1698Jeanie d. 11 Apr 1925John d. 1883John Henry Edward b. 1914Keith b. 1921Margaret Eva d. 1970Mary d. 1783Mary Euphemia b. 24 Aug 1910Nicholas Thomas b. 1962Susan Olive d. 28 Jan 1943Thomas d. b 1893Thomas Edward Telford b. 7 May 2001Thomas Jefferson d. 15 May 1946
- Duffin
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Adam b. c 1764, d. 19 Aug 1837Andrena Christian b. 1943Charles b. 24 Oct 1840, d. 1899Charles Howard d. 2 Sep 1921Charles William b. c 1817Elinor b. 27 Nov 1777, d. 20 Jul 1839Ellen Frances Isabella b. 11 Sep 1861, d. 25 Jun 1942Flora b. 1857, d. 1906Florence Ann Petronel b. 25 Jan 1924, d. 24 Jun 2013Maria Letitia b. 1843, d. 1872Olivia Anne b. 1821
- Duffus
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1st Lord (Alexander) b. c 1621, d. 31 Aug 16742nd Lord (James) d. 24 Sep 17053rd Lord (Kenneth) d. 18 Mar 1733/344th Lord (James) b. 8 Jun 1747, d. 30 Jan 18275th Lord (Benjamin) b. 28 Apr 1761, d. Feb 18436th Lord (George Sutherland) b. 6 Jan 1799, d. 28 Aug 1875Edith Mary d. 10 Jan 1900Elizabeth Sylvia b. 23 Jan 1921, d. 1984Florence Margaret Catto d. 29 May 2004Gertrude d. 11 Oct 1957Hélène Gertrude d. 1975James b. 17 Mar 1850, d. 1 May 1904James Montague Coutts b. 18 Mar 1891, d. 26 Nov 1947Rosetta d. 26 Apr 1948
- Duffy
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Alice d. 1789Diana Holmes d. 29 Nov 2008Elizabeth d. 1966Francis d. 1815Georgiana Persis b. 26 Jul 1846, d. c 1947Joane Adéle Stuart b. 18 Sep 1959John d. 1836John b. 1769, d. 1827John Walter Brand b. c 1844, d. 1922Judith b. c 1750Louise Anne b. 20 Dec 1965Marsha Ann b. 1947Mary A. b. c 1784, d. 1840Matthew Peter Michael b. 1993Patrick b. c 1801, d. 1826Steven Seton b. 1968