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One-name study

One-name study is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand One-name study rather than just read about it. In short: A one-name study is a project researching a specific surname, as opposed to a particular pedigree (ancestors of one person) or descendancy (descendants of one person or couple). Some people who research a specific surname may restrict their research geographically and chronologically, perhaps to one country and time period, while others may collect all occurrences world-wide for all time.

Key takeaways

  • One-name study belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect One-name study to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of One-name study from memory before moving on to harder problems.

Reference excerpt

A one-name study is a project researching a specific surname, as opposed to a particular pedigree (ancestors of one person) or descendancy (descendants of one person or couple). Some people who research a specific surname may restrict their research geographically and chronologically, perhaps to one country and time period, while others may collect all occurrences world-wide for all time. A one-name study is not limited to persons who are related biologically. Studies may have a number of family trees which have no link with each other. Findings from a one-name study are useful to genealogists. Onomasticians, who study the etymology, meaning and geographic origin of names, also draw on the macro perspective provided by a one-name study.

Scope Many people conducting family history, genealogical or onomastic research may conduct a one-name study of a surname in a given period or locality quite informally. A full one-name study can be daunting, particularly if the surname is very common. Conversely, a rare surname can be difficult to trace. Since such studies are usually conducted by individuals as a pastime, they are generally feasible only when a surname is not used by more than a couple of thousand contemporary people, so that the total historical data-set is numbered in the low tens of thousands. Where a surname is used by hundreds of thousands, or millions of people, it would be practically impossible to differentiate these persons using national-index data alone. In some cultures, one-name studies are impossible, since hereditary surnames are not used at all or in the case of names such as Singh may represent religious practice rather than an ancestry. Since a majority of human societies use patronymic surnames, one-name studies generally focus on male succession and ignore family relationships through marriage. Some researchers are satisfied to collect all information and group it geographically, approximately representing the different family groups. Others attempt to reconstruct lineages. In most one-name studies, a united lineage will not be discovered, but broad perspectives can be achieved, giving clues to name origins and migrations. Many researchers are motivated to go beyond the one-name-study stage and to compile fully researched, single-family histories of some of the families they discover.

Methods Accessibility of the data required for a one-name study varies from country to country. Where civil registration indexes are open to public search, they may not be online or gathered in the national capital, but are scattered through the states, as in Australia, or towns, as in France and the United States. In many countries, such as Germany, civil registration and census data are regarded as a state prerogative: vital data are only available to the persons concerned and 19th-century census returns are not available at all. One-name studies in the United States have become more feasible than they were, thanks to the increased availability of online indexes to 19th-century and early-20th-century censuses. More limited one-name studies can be conducted using other national indexes including:

telephone and address directories registers of wills or deceased estates electoral rolls land possession records military service indexes One-name studies are generally rounded out with a miscellany of information drawn from national bibliographies, archival catalogues, patent databases, reports of law cases, tax lists, newspaper indexes and web searches. A one-name researcher may also report on the linguistic origins of the surname and its use in place names and corporate names.

UK surnames Civil registration indexes of births, marriages and deaths in England and Wales (for the period from 1837), Scotland (from 1855) and Northern Ireland (from 1865 and Protestant marriages from 1845) are in the public domain, and anyone may apply to see the details of any birth, marriage or death. For the period before civil registration, in principle back to 1538 in England and Wales and 1533 in Scotland, parish registers have recorded birth and/or baptisms, marriages and deaths and/or burials. These are also freely available, although the survival of such registers is less likely as we reach back to the earliest dates of this period. The civil registration index books for England and Wales were scanned and made available online in 2004 by the subscription web site Findmypast (formerly 1837online) and an index has also been created by volunteers for the free web site FreeBMD. Records for Scotland can be searched at the pay-per-view web site ScotlandsPeople, and this means that a one-name study with a British focus can be conducted from anywhere in the world. Civil registration indexes for Northern Ireland can be viewed at the General Register Office (Northern Ireland) (GRONI) on payment of an entrance fee. Censuses have taken place in England, Wales, Scotland and Ireland since the 1800s. The Irish Census returns for the years 1841 to 1891 are not available having been destroyed. Otherwise information from the 10-yearly censuses from 1841 until 1911 is available and facilitates the linking of surname data into family groups. Since it is possible to extract a complete data-set of a given surname from these public records, ancestries of most 20th-century persons with a particular surname in England and Wales can be compiled without needing any contact to the persons concerned.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with One-name study

Start with the simplest possible case. Write down what One-name study claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to One-name study before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about One-name study ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of One-name study

In research
One-name study appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses One-name study in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
One-name study is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genealogy, Onomastics, Surname, so understanding it makes those chapters shorter.
In everyday life
Look for One-name study outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study One-name study in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what One-name study means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain One-name study out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is One-name study in simple terms?

A one-name study is a project researching a specific surname, as opposed to a particular pedigree (ancestors of one person) or descendancy (descendants of one person or couple). Some people who research a specific surname may restrict their research geographically and chronologically, perhaps to on…

Why does One-name study matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study One-name study?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on One-name study.

Tags

  • Genealogy
  • Onomastics
  • Surname

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