Introduction - Project Results - Findings - Participants
    DNA Genealogy Tutorial - DNA Glossary
    Explanation of Markers - Explanation of Y-DNA Testing

    This is the official Y-DNA study of the Haviland, de Havilland, Havilant, Heavilon, Havlin, Haveland, Haverland surname (or any of its other variant spellings). ALL MALES WITH THIS SURNAME OR ADOPTED FROM THIS SURNAME ARE ENCOURAGED TO PARTICIPATE! This study is only open to males because it traces the Y Chromosome through your father, your father's father, etc, which is culturally also how your surname is passed down.

    If you are a female researcher, you can participate indirectly if you have a brother, father, grandfather, paternal uncle, or male cousin with the Haviland (or variant) surname who is willing to submit a DNA sample. Males and Females are also allowed to sign up with the Haviland project and order mtDNA testing, however those results will only reflect ancestry through your mother, your mother's mother, and so forth, following the Mitochondrial Chromosome, and therefore will not be analyzed in the Y-DNA Haviland Surname study.


    As of July 2011, the primary host for the Y-DNA surname study is now Family Tree DNA.

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    The English de Havilland family: We have proven that the de Havilland family of Guernsey (from whom Olivia de Havilland descended) and the Havilands of America are in fact the same family.

    A grandson of Major Piers de Havilland (the last member of the family to own Havilland Hall on Guernsey) and 4th great grandson of Peter de Havilland (Bailiff of Guernsey in 1810; also an ancestor of actresses Olivia and Joan, and of airplane inventor Sir Geoffrey), has participated in our Y-DNA project. He matched 42 out of 43 markers with a majority of the Havilands in our study, despite that he is a 13th-15th cousin.

    The MRCA (most recent common ancestor) between this de Havilland branch and the Haviland branch that emigrated to America is Thomas, Sieur de Haveilland himself, the Jurat of Guernsey in 1472 who is the earliest paternal ancestor from whom any Haviland can be traced. This means that we now know at least 42 of the Y-chromosome alleles that belonged to a man who lived in the late 1400's and from whom over 8000 known persons are descended!

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    The Irish Havlin family: The Haviland/de Havilland Y-DNA Project has proved that the Irish Haviland / Havlin family is a genetically different family tree than the Haviland / de Havilland family from Guernsey and England. A Haviland participant of our study who descended from the Irish had at least 13-14 different alelles than the other Haviland or de Havilland subjects. So we have positively identified 2 distinct family trees bearing variations of the name Haviland which have no relationship to one another.

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    The Germanic Haverland family: At least one Y-DNA project participant bearing the name Haverland has 25 different alelles than any Haviland or de Havilland subject, proving he is definitely not of the same family. However his genealogy is unknown. Adoption in his branch could also explain these differences. We need someone with a deep Haverland genealogical ancestry to participate in order to conclusively prove whether this family is related to the de Havilland stock originating in Guernsey.

    True genealogy requires proof of descent in the form of primary sources (birth records, marriage records, census records, etc). This can be very difficult, and sometimes impossible if the records no longer exist. Most researchers compile an alleged family tree based on secondary sources (family tree books compiled by others, often not well documented) or tertiary sources (the OneWorld Tree or Ancestry World Tree at Ancestry.com, the World Family Tree at Genealogy.com / Family Tree Maker, or the LDS IGI or PAF files) which are themselves compiled from often tertiary, secondary or unknown sources and are very unreliable.

    A DNA surname study helps to prove paternal relationships between cousins. (A "paternal" relationship is one traced entirely through male descent.) The Y chromosome is only passed down to males. Since surnames are traditionally also passed down only to males, a Y-DNA test corroborates paternal relationship between two people, even very distant cousins. This is exciting, because surnames often come in different variant spellings, steering genealogical research in the wrong directions. One surname can end up with very different spellings, or, two completely different names can end up spelled exactly the same even though there is no paternal common ancestry within the last thousand years. The DNA study will tell us who is related paternally.

    It also can show paternal relationship between distant cousins with entirely different surnames. This can happen when an ancestor has an adopted or changed name, or if the common ancestor is so far back in time that surnames were not passed down. In ancient days, a surname changed from generation to generation based on occupation (Smith, Carpenter, Baker, etc), location (Marsh, Cullen [meaning "back of the river"], Dunlop [meaning "muddy hill", etc) or descent (Williamson [meaning "son of William"], MacDonald [meaning "son of Donald" in Ireland], O'Brien [meaning "grandson of Brien" in Ireland], FitzRoy [meaning "illegitimate son of Roy"], etc), and so on. Sometimes it is not even very clear. (John Williams may be the son of a William, whose name was William Richards because he was the son of a Richard, whose name was Richard Hughes because he was the son of a Hugh... It's a nightmare for genealogists.)

    There are two major purposes of the Haviland DNA surname project:

    1) Clarifying and corroborating the Haviland family tree world wide. There is a large database of Havilands believed to be descended from a one Thomas, Sieur De Haveilland, Jurat of Guernsey in 1470. This is based on research passed down to us by a number of individuals, culminating as the 1914 book Haviland Genealogy by Josephine C. Frost. Many Havilands have traced themselves back to lines published in this book, resulting in a huge family tree that for now is largely unsupported by primary evidence. The DNA study will strengthen the certainty of this genealogy. It will also reveal some branches of Haviland that may not be related to this genealogy at all. (It cannot be assumed that all families bearing variants of the name Haviland are the same paternal genealogy.)

    2) Understanding the differences between the Irish and Guernsey families, and proving or disproving the relationship between the Guernsey and Germanic branches. People with the surname of Havoline, Havline, or Havlin, or whose ancestors spelled their name this way, are believed to be descended from an Irish family. This is proved to be a separate family tree with no paternal relationship to the Guernsey / English family of Haviland / de Havilland popularized by Frost. We are building a separate database of this family tree. Also, there are families with the surname of Haverland, Haverlanth, Hawerland, or Hauerlandt in the Netherlands and surrounding territories (one branch is known for its locally famous Haverland Pumpernickel bread). It is unknown if this is connected to the Guernsey genealogy. MALES WITH ANCESTORS OF HAVERLAND OR ANY SIMILAR SPELLINGS ARE STRONGLY ENCOURAGED TO PARTICIPATE! We would very much like to know if we are all the same family. The Haverlands may be very distantly related, possibly with common ancestors going all the way back to Neustria (pre-Guernsey).

    Here's how the project works:

    The cost of the test depends on how many markers you order to have tested. The more markers are tested and compared, the more accurate the results. We strongly recommend the Y-DNA37 or Y-DNA67 test. The Y-DNA67 is exceptional. If you really want a definitive test, go for the Y-DNA111! The more markers that are studied, the clearer the mutation map.

    The test itself is painless and easy. You will receive the test in the mail, which consists of a swab and a container to return it in. Following the instructions that come with the test, you will simply rub the swab inside your mouth (inside the cheek), seal it in the baggie, and mail it to the lab in the envelope or container provided.

    Next, your markers are compared with the same markers from other participants. If they are identical, that means there is a paternal relationship with a common ancestor living within a probable time frame. The marker results are published at a web site with a "subject number" that represents each participant. If you allow us to share the genealogy of your branch (however much of it you know), we will eventually demonstrate with graphs and family trees where it probably fits in. This will help steer further genealogical and historical research in the right directions, and uncover the genetic chemistry of our earliest Haviland ancestors!

    If you have any questions, you can contact me directly.

    --Christopher Sirmons Haviland