Key Dimensions and Scopes of Genealogy

Genealogy is not a single activity — it's a cluster of overlapping research disciplines, each with its own records, standards, and geographic reach. The scope of any given genealogical project depends on who is being researched, where they lived, what records survived, and what the researcher is trying to prove. Understanding how those dimensions interact is what separates a focused, productive search from years of productive-feeling spinning in place.

• What Falls Outside the Scope
• Geographic and Jurisdictional Dimensions
• Scale and Operational Range
• Regulatory Dimensions
• Dimensions That Vary by Context
• Service Delivery Boundaries
• How Scope Is Determined
• Common Scope Disputes

What falls outside the scope

Genealogy is sometimes conflated with adjacent disciplines that it touches but does not contain. Medical genetics, legal heirship proceedings, and biography all borrow genealogical data — but they operate under entirely different professional and evidentiary frameworks.

DNA health analysis sits outside genealogical scope. Consumer DNA tests sold by companies like AncestryDNA and 23andMe generate ethnicity estimates and match lists that are useful for DNA testing for genealogy, but the health-risk reports those same kits sometimes produce are medical documents governed by FDA oversight, not genealogical research outputs.

Legal kinship determinations — intestate inheritance, paternity adjudication, tribal enrollment — are judicial or administrative processes. A genealogical report may be entered as evidence, but the genealogist is not making the legal finding. The Board for Certification of Genealogists (BCG) explicitly distinguishes genealogical conclusions from legal conclusions in its standards documentation.

Biography and family narrative overlap with genealogy but are not equivalent to it. A family history book is a literary product; a genealogical proof argument is an evidentiary one. The two are frequently combined in projects like writing a family history, but the underlying standards differ.

Mythology and oral tradition are legitimate starting points for research but not genealogical conclusions. A family legend placing ancestors at a specific 1776 battle requires documentary corroboration before it qualifies as a genealogical finding under the Genealogical Proof Standard.

Geographic and jurisdictional dimensions

The United States alone contains at least 4 distinct jurisdictional layers that affect what records exist and who controls them: federal, state, county, and municipality. A birth record generated in Cook County, Illinois is not the same document as a federally recorded event — it's a county-level vital record governed by Illinois state statute, physically held (or digitized) by the Illinois Department of Public Health.

Before 1900, vital registration in the US was inconsistent across states. Massachusetts began mandatory birth registration in 1842; many Southern states did not achieve statewide compliance until after 1920, per the National Center for Health Statistics. This is not a gap in the research — it's a jurisdictional reality that shifts the evidentiary burden onto church and religious records, land and property records, and census enumeration.

International research multiplies the jurisdictional layers considerably. German-American genealogy, for example, requires navigating records from German states that did not unify into a single nation until 1871 — meaning a researcher tracing an 1850 immigrant must identify which of the approximately 39 sovereign German states that ancestor left, and then locate the specific civil or ecclesiastical registry for that locality. The German-American genealogy research path through FamilySearch and German state archives reflects that fragmentation directly.

Scale and operational range

The Freedmen's Bureau Records — approximately 1 million documents generated between 1865 and 1872 — represent one of the most significant record sets for reconstructing African American family lines disrupted by slavery. Their survival is patchy; their indexing, largely completed through a volunteer transcription project at FamilySearch, reached roughly 1.9 million records indexed by 2022.

Regulatory dimensions

Genealogy occupies an unusual regulatory position: largely unregulated as a profession, but subject to significant data law at the records level.

Vital records — births, deaths, marriages, divorces — are governed by state statute. All 50 US states restrict access to records for living persons or records within a defined window, typically 50 to 100 years depending on record type and state. The Social Security Death Index (Social Security Death Index), maintained by the Social Security Administration, had public access significantly curtailed after 2011 under the Budget Act of that year, which restricted access to deaths within the prior 3 calendar years.

Federal census records become publicly available 72 years after enumeration, a policy established under 44 U.S.C. § 8(b). The 1950 Census was released in April 2022; the 1960 Census will not be released until 2032. This statutory schedule directly determines the operational boundaries of US census records research.

DNA data carries its own regulatory layer. The Genetic Information Nondiscrimination Act (GINA) of 2008 prohibits discrimination based on genetic information in health insurance and employment contexts — but GINA explicitly does not cover life insurance, disability insurance, or long-term care insurance. Researchers using autosomal DNA genealogy to identify unknown relatives are generating data with legal implications that extend beyond the genealogical project itself.

Dimensions that vary by context

Purpose changes scope dramatically. Documenting descent for a hereditary lineage society like the Daughters of the American Revolution requires proving an unbroken documented line to a qualifying ancestor — a different evidentiary standard than casual family history compilation. DAR requires 4 specific document types minimum per lineage link.

Ethnic and community context reshapes the entire record landscape. Native American genealogy involves federal tribal rolls (the Dawes Rolls covering the Five Civilized Tribes, compiled 1898–1914, contain approximately 101,000 enrolled members), federal Indian census schedules separate from the decennial census, and the jurisdictional complexity of tribal sovereignty. Jewish-American genealogy pivots heavily on records held by Yad Vashem, JRI-Poland, and landsmanshaftn records that have no equivalent in other ethnic research tracks.

Living vs. deceased subjects defines an absolute boundary. Genealogical research on living individuals is constrained by privacy law, terms of service on major databases, and professional ethics. The Association of Professional Genealogists (APG) Code of Ethics prohibits sharing private information about living people without consent.

Service delivery boundaries

The delivery of genealogical research takes 4 primary forms, each with different scope implications:

1. Self-directed amateur research — conducted through platforms like Ancestry.com and FamilySearch, bounded by the researcher's own time and skill.
2. Professional research contracts — scoped by written agreement, typically defined by a specific research question, a record set, a time period, or a geographic region. The BCG and APG both publish standards for professional engagements.
3. Institutional research — conducted by archives staff, genealogical libraries, or local historical societies in response to specific lookup requests, typically bounded by what is physically held in that repository.
4. Collaborative or crowdsourced projects — such as the volunteer indexing programs at FamilySearch, where scope is defined by a specific record collection rather than a family line.

Hiring a professional genealogist for a bounded project is most productive when the research question is specific enough to define a clear deliverable — a common source of scope disputes arises when the question is "find everything about my family," which has no natural terminus.

How scope is determined

A checklist of scope-defining factors for any genealogical project:

• Named subject — full name, approximate birth year, and last known location of the target ancestor
• Research question — a specific provable or disprovable claim (e.g., "Was this person born in County Cork before 1850?")
• Record availability — what collections exist for that time, place, and population
• Access constraints — privacy restrictions, repository hours, digitization status, language barriers
• Evidentiary standard — is this for personal knowledge, publication, or a formal application to an organization with defined proof requirements?
• Time and resource limit — a hard boundary on hours, budget, or repository access

The research planning and organization framework used by professional genealogists formalizes these factors into a written research plan before work begins — a discipline that prevents scope creep from transforming a two-generation question into an open-ended decades-long project.

Common scope disputes

"Proving" a family legend is one of the most common scope friction points. A researcher arrives convinced of a specific connection — Cherokee princess, Revolutionary War hero, immigrant who changed the family name at Ellis Island (a myth that the National Archives genealogy resources explicitly debunk, as name changes at Ellis Island were extremely rare based on surviving manifests). When documents fail to confirm the legend, the scope question becomes whether the research has proven a negative or simply exhausted available records.

Living relative conflicts arise when one family member commissions research and another objects to information being surfaced — particularly in adoptee genealogy research and unknown parentage research, where biological family members may have actively chosen not to be found.

DNA match interpretation generates persistent scope disputes between what the science supports and what researchers want it to confirm. An autosomal DNA match at the 3rd-cousin level shares approximately 3.1% of DNA on average (the Shared cM Project, published by Blaine Bettinger, documents the range as 0–173 cM for predicted 3rd cousins), but the relationship it represents could be any of 16 or more relationship types. Genetic genealogy tools can narrow the possibilities; they cannot resolve them without documentary corroboration.

The full landscape of genealogical practice — its methods, records, tools, and research communities — is mapped across the genealogyauthority.com reference collection, organized by record type, ethnic research track, DNA methodology, and professional standards.