Category: Twins

Categories: Multiple Births

Landing level category for profiles of persons of twin birth.

There are three types of twins:

  • Identical (Monozygotic) means that the zygote (fertilized egg) formed two separate embryos. Conjoined twins are identical twins with an incomplete separation of cells.
  • Semi-Identical (Sesquizygotic) is where two sperm fertilize one egg. The fertilized egg then splits in two. So, semi-identical twins share all the same chromosomes from their birthing parent (mother), but only 50 percent from their non-birthing parent (father). Semi-identical twins have only recently been discovered and there are so far only two known cases.
  • Fraternal (Dizygotic) means that more than one egg was fertilized. This is typical when fertility drugs were used; but it often occurs naturally as well. Because these twins share a completely different set of chromosomes from both their mother and father, they are genetically just like singleton siblings that just happen to be born at the same time. Twins of different genders are almost always fraternal twins (there are a few sets of different gender identical twins - this is caused by a genetic mutation and is extremely rare).

Fun Fact: Only 1/3 of all twins in the world are identical twins. Fraternal twins make up 2/3 of all twin births.


Person Profiles (22,564)

Viewing 200 profiles starting with H.
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H

27 Sep 1875 Stuttgart, Stuttgart, Wurttemberg, Germany - 20 Oct 1875
27 Sep 1875 Stuttgart, Stuttgart, Wurttemberg, Germany - 26 Feb 1889
20 Oct 1868 Sandusky, Ohio, United States - 27 Oct 1953
20 Oct 1868 Ohio, United States - 18 Sep 1870
04 Sep 1889 Troy, Wood, Ohio, United States - 02 May 1925
04 Sep 1889 Troy, Wood, Ohio, United States - 26 Jul 1965
22 Sep 1897 Sint Annaparochie, Friesland, Nederland - 11 May 1927
22 Sep 1897 Sint Annaparochie, Friesland, Nederland - 09 Jan 1965
09 Jan 1825 Lauterbach, Oberndorf, Württemberg, Germany
1825 Lauterbach, Oberndorf, Königreich Württemberg, Deutsches Reich
04 Jan 1763 La Prairie, Canada, Nouvelle-France - 19 Nov 1831
08 Apr 1847 Caraquet, Gloucester, New Brunswick
08 Apr 1847 Caraquet, Gloucester, New Brunswick
01 Jun 1665 London St Giles without Cripplegate, Middlesex, England
01 Jun 1665 London St Giles without Cripplegate, Middlesex, England - 12 Jun 1665
1839 Bethnal Green, Middlesex, England, United Kingdom - 11 Jan 1855
1839 Bethnal Green, Middlesex, England, United Kingdom - 1887
12 Jun 1925 Jefferson, Georgia, United States - 11 Dec 2013
12 Jun 1925 Avera, Jefferson, Georgia, United States - 07 Feb 2008
29 Aug 1851 Bishopwearmouth, Durham, England, United Kingdom - 06 Jan 1918
29 Aug 1851 Bishopwearmouth, Durham, England - 15 Mar 1910
17 May 1908 Orangeville, Emery County, Utah, USA - 17 May 1908
17 May 1908 Orangeville, Emery County, Utah, USA - 17 May 1908
28 Mar 1920 Ogden, Weber, Utah, United States - 12 Sep 1990
28 Mar 1920 Ogden, Weber, Utah, United States - 03 Sep 2000
25 Jul 1909 Middlebourne, Tyler, West Virginia, United States - 23 May 1994
24 Aug 1841 Morgan, Indiana, United States - 09 Sep 1841
24 Aug 1841 Morgan, Indiana, United States - 20 Sep 1841
15 May 1830 Brownfield, Oxford, Maine, United States - 23 Jun 1861
15 May 1830 Brownfield, Oxford, Maine, United States - 24 Feb 1832
06 Dec 1857 Lyndoch, South Australia, Australia - 01 Feb 1858
06 Dec 1857 Lyndoch, South Australia, Australia - 01 Jan 1905
26 Aug 1879 Coldwater, Branch, Michigan, United States - 01 Feb 1885
26 Aug 1879 Coldwater, Branch, Michigan, United States - 18 Sep 1879
Living Haeusler
Living Haeusler
1916 Texas, USA
1916 Texas, USA - 1944
20 Nov 1647 Watertown, Middlesex, Massachusetts Bay - 01 Feb 1738
20 Nov 1647 Watertown, Middlesex, Massachusetts Bay - 13 Feb 1704
02 Jun 1826 Sint Annaland, Zeeland, Nederland - 17 Jun 1905
02 Jun 1826 Sint Annaland, Zeeland, Nederland - 21 Jan 1827
22 Jan 1900 New Zealand
1900 - 21 Oct 1958
1990s - 1990s Privacy Level: Private with Public Biography and Family Tree (Yellow)
1990s Privacy Level: Private with Public Biography and Family Tree (Yellow) photo Active member3954
Living Hagenburg
Living Hagenburg
14 Sep 1918 Limestone, Alabama, United States - 30 Jun 1983
04 Feb 1764 Albemarle, Virginia - 18 May 1846 photo
04 Jan 1764 Albemarle, Virginia - 15 Apr 1844
01 Jul 1924 Twin Falls, Twin Falls, Idaho, - 19 Nov 1998 photo
01 Jul 1924 Twin Falls, Twin Falls County, Idaho, USA - 17 Jul 2003 photo
bef 20 Oct 1641 St. Ulrich, Sevelen, Landvogtei Werdenberg, Glarus, Schweizer Eidgenossenschaft
28 Oct 1854 Greendale, Washington, Virginia, USA - 29 Dec 1932
28 Oct 1854 Greendale, Washington, Virginia, United States - 15 Dec 1945
bef 22 Jun 1679 Königerode, Quedlinburg, Sachsen, Preußen, Deutschland - bef 18 Sep 1679
bef 22 Jun 1679 Königerode, Quedlinburg, Sachsen, Preußen, Deutschland - 24 Jan 1743
25 Mar 1920 Detroit, Wayne, Michigan, United States - 08 Feb 2021 photo
09 Nov 1851 Yalobusha, Mississippi, United States - 13 Nov 1851
09 Nov 1851 Yalobusha, Mississippi, United States
1900s - 1970s Privacy Level: Private with Public Biography and Family Tree (Yellow)
01 Sep 1854 Frederick County, Maryland, United States - 17 Sep 1933
13 Oct 1855 Tea Tree Gully, South Australia, Australia - 01 May 1901
13 Oct 1855 Tea Tree Gully, South Australia, Australia - 11 Apr 1938
02 Jan 1895 Sacramento, Sacramento, California, United States - 02 Jan 1895
14 Mar 1720 Trumön, Kvistbro, Örebro, Sverige - 24 Mar 1720

H cont.

14 Mar 1720 Trumön, Kvistbro, Örebro, Sverige
1857 Shoalhaven, New South Wales, Australia - 16 May 1944
1857 Shoalhaven, New South Wales, Australia - 1903
08 Mar 1882 Menifee, Kentucky, United States - 06 Feb 1914
22 Aug 1920 Wythe, Virginia, United States - 09 Sep 1962
24 Jun 1878 Lawrence, Kentucky, United States - 24 Feb 1942
23 Jun 1878 Lawrence, Kentucky, United States - abt 1880
20 Mar 1874 Lawrence County, Kentucky, USA - 13 Dec 1935
08 Mar 1882 Menifee, Kentucky, United States - 26 Feb 1953
27 Feb 1755
26 Jul 1903 Vienna, Kennebec County, Maine, USA - 15 Jul 1990
26 Jul 1903 Vienna, Kennebec, Maine, United States - bef 2003
07 Feb 1822 Bethnal Green, London, England - aft 02 May 1895 photo
07 Feb 1822 Bethnal Green, London, England photo
18 May 1841 Big Mud, Floyd County, Kentucky, United States - 11 Feb 1882
18 May 1841 Mud Creek, Floyd County, Kentucky, United States - 1894 photo
07 Jan 1906 Arkansas, United States - 13 Jan 1906 photo
abt 1910 Arkansas, United States - abt 1910
31 Aug 1951 Calhoun, Gordon, Georgia, United States - 12 Oct 1951
31 Aug 1951 Calhoun, Gordon, Georgia, United States - 12 Sep 1951
14 Jun 1765 Massachusetts Bay Colony
14 Feb 1749 Westerly, Kings, Rhode Island
08 Jun 1750 Westerly, Kings, Rhode Island
21 Aug 1907 Grade, Cornwall, England, United Kingdom - 1967
21 Aug 1907 Grade, Cornwall, England, United Kingdom - abt 01 Nov 1986
06 Dec 1910 Abilene, Taylor, Texas, United States - 23 Dec 1960
05 Dec 1910 Abilene, Taylor, Texas, United States - 28 Oct 1984
1861 Barnsley, Yorkshire, England - 1861
1861 Barnsley, Yorkshire, England - 1861
06 May 1788 - 1823
06 May 1778 - 1835
04 Dec 1899 St Stephens, Hertfordshire, England - 1995
04 Dec 1899 St Stephens, Hertfordshire, England - May 1933
08 May 1882 - 13 Sep 1957
08 May 1882 - 08 Mar 1938
23 Jul 1863 Danville, Caledonia, Vermont, United States - 03 Sep 1864
23 Jul 1863 Danville, Caledonia, Vermont, United States - 10 Sep 1864
06 Apr 1880 Nambucca River, New South Wales, Australia - 03 Sep 1966
22 Jul 1917 Atlanta, Fulton, Georgia, United States - 27 Apr 1963
22 Jul 1917 Atlanta, Fulton, Georgia, United States - 01 Nov 2006
12 Apr 1916 Falls Church, Fairfax, Virginia, USA - bef 1920
12 Apr 1916 Falls Church, Fairfax, Virginia, USA - bef 1920
06 Aug 1766 Bristol, England - 06 Aug 1766
06 Aug 1766 Bristol, England - 06 Aug 1766
24 Jan 1899 Athens, Mercer County, West Virginia, United States - 26 Apr 1973 photo
24 Jan 1899 Athens, Mercer, West Virginia, United States - bef 1900 photo
06 Apr 1880 Nambucca River, New South Wales, Australia - 15 Apr 1965
Aug 1795 Cohasset, Norfolk, Massachusetts, United States - 17 Feb 1867
Aug 1795 Cohasset, Norfolk, Massachusetts, United States - 18 Feb 1847
09 Feb 1885 Camberwell, Surrey, England, United Kingdom
09 Feb 1885 Camberwell, Surrey, England, United Kingdom - 21 Jul 1949
1845 Yatton Keynell, Wiltshire, England, United Kingdom
1845 Yatton Keynell, Wiltshire, England, United Kingdom - 1927
05 Oct 1860 New York, USA - 06 Apr 1914
05 Oct 1860 New York, USA - 13 Apr 1919
27 Feb 1755 Loonenberg, Greene, New York - abt Jul 1832
abt 1785 Brunswick Twp, Schuylkill, Pennsylvania - 1855
abt 1785 Berks, Pennsylvania, United States - 18 Jul 1849
07 Apr 1874 Galena, Jo Daviess County, Illinois, United States - 13 Mar 1950
08 Dec 1912 Buchanan County, Iowa, United States - 14 Dec 1912
08 Dec 1912 Buchanan County, Iowa, United States - 05 Apr 1991
07 Apr 1874 Galena, Jo Daviess County, Illinois, United States - 23 Oct 1939
10 Apr 1909 Bermondsey, London, England, United Kingdom - abt Nov 1973
10 Apr 1909 Bermondsey, London, England, United Kingdom - 01 May 2000
04 Mar 1876 Oil City, Venango, Pennsylvania, United States - 18 Feb 1964
04 Mar 1876 Venango County, Pennsylvania, United States - 06 Jan 1877
23 Feb 1820 Carluke, Lanarkshire, Scotland, United Kingdom - 10 Jun 1888

H cont.

23 Feb 1820 Carluke, Lanarkshire, Scotland, United Kingdom - 15 Jun 1862
03 May 1872 Waterloo, Lanarkshire, Scotland, United Kingdom
03 May 1872 Waterloo, Lanarkshire, Scotland, United Kingdom
15 Nov 1883 Peterborough, Peterborough Co., Ont., Canada - abt 14 Apr 1973
15 Nov 1883 Peterborough, Ontario - 31 Aug 1919
1736 Skien, Telemark, Norge - 1736
1775 Buer, Gjerpen, Telemark, Norge
14 Feb 1822 Rønningen, Hof, Jarlsberg og Larvik, Norge
1777 Meen, Gjerpen, Telemark, Norge
1769 Østre Porsgrunn, Telemark, Norge - 24 Jun 1845
1800 Brattebakke under Bergan, Solum, Telemark, Norge - 1801
1769 Østre Porsgrunn, Telemark, Norge
1756 Marum, Solum, Telemark, Norge - 1762
01 May 1837 Meltvet, Solum, Telemark, Norge
10 Mar 1822 Tingstad under Solum Prestegaard, Solum, Telemark, Norge
10 Mar 1822 Tingstad under Solum Prestegaard, Solum, Telemark, Norge - 08 Jan 1824
1764 Hollaseter, Holla, Telemark, Norge - 17 Apr 1841
01 May 1837 Meltvet, Solum, Telemark, Norge
1764 Hollaseter, Holla, Telemark, Norge - 1764
1736 Skien, Telemark, Norge - 1736
1775 Buer, Gjerpen, Telemark, Norge
14 Feb 1822 Ronningen, Hof, Jarlsberg og Larvik, Norge - 03 Aug 1823
1777 Meen, Gjerpen, Telemark, Norge - 1778
1800 Brattebakke under Bergan, Solum, Telemark, Norge - 16 Oct 1851
1756 Marum, Solum, Telemark, Norge - bef 1798
15 Nov 1964 Kansas, United States - 15 Nov 1964
15 Nov 1964 Kansas, United States - 15 Nov 1964
09 Apr 1805 Québec, Bas-Canada - 11 Jun 1805
09 Apr 1805 Québec, Bas-Canada - 05 May 1809
08 Aug 1928 - 09 Jun 2010
14 Aug 1853 - 19 Aug 1853
14 Aug 1853 Schifferstadt, Bayern, Germany - 23 Aug 1853
24 May 1882 Tennessee - 04 Jan 1968
24 Mar 1882 Tennessee - 20 Feb 1961
13 Dec 1881 Chariton, Missouri, United States - 21 Mar 1954
Dec 1881 Missouri, United States
abt 1918 - abt 1918
abt 1918 - abt 1919
17 Feb 1853 Missouri, United States - 18 Oct 1932
17 Feb 1853 - 18 Jan 1933
24 Dec 1893 Wise, Virginia, United States - 17 Feb 1986
24 Dec 1893 Wise, Virginia, United States - 10 Oct 1995
10 Jul 1864 Craigs, Portglenone, Ballymena, Antrim, Ireland - bef 1866
10 Jul 1864 Craigs, Portglenone, Ballymena, Antrim, Ireland
04 Jul 1910 Oklahoma, United States - 27 Jul 1946
04 Jul 1910 Oklahoma, United States - 10 Aug 1979
10 Aug 1889 Fitzroy, Carleton, Ontario, Canada - 25 Aug 1984
10 Aug 1889 Fitzroy, Ottawa, Carleton, Ontario, Canada - 10 Aug 1889
15 Jul 1818 Smithsburg, Washington, Maryland, United States - 06 Apr 1900 photo
01 Nov 1895 Chattooga County, Georgia, United States - 02 Nov 1895 photo
bef 26 Nov 1641 Pirton, Hertfordshire, England - bef 28 Nov 1641
bef 26 Nov 1641 Pirton, Hertfordshire, England - bef 28 Nov 1641
1890 Benalla, Victoria, Australia
1890 Benalla, Victoria, Australia
14 Sep 1914 Romford, Essex, England, United Kingdom - abt Oct 1992
14 Sep 1914 Ilford, Essex, England - abt 12 Dec 1993
01 May 1921 Oak Hill, Jackson County, Ohio, United States - 05 Jun 1921
15 Dec 1944 Schuyler, Nelson, Virginia, United States - 15 Dec 1944
15 Dec 1944 Schuyler, Nelson, Virginia, United States - 07 Feb 1945
abt 1818 Woodchurch, Kent, England, United Kingdom - 18 Jan 1890
05 Oct 1888 New Zealand - 05 Oct 1916
05 Oct 1888 New Zealand - 24 Nov 1941
1890 New Zealand - 1890
1890 New Zealand - 28 Dec 1965
abt 1818 Woodchurch, Kent, England, United Kingdom - 1882 photo
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