Documentary Research: Building a Family History from Primary Sources

The Difference Between a Story and a History

Every family has stories. The grandmother who came from Ireland. The great-uncle who fought in the Civil War. The ancestor who was a Cherokee princess, or a horse thief, or a stowaway on a ship. These stories are precious -- they are the oral tradition of the family, passed down across generations, connecting the living to the dead.

But stories are not histories. A family history -- a credible, documented account of who your ancestors were and what their lives looked like -- is built from primary sources: the original documents that recorded events as they happened or shortly after. Parish registers, census records, wills, deeds, military records, court records, newspapers, and gravestones are primary sources. A family story repeated at Thanksgiving dinner is not.

This does not mean family stories are worthless. They are often correct in their broad outlines, and they point the researcher toward the records that can confirm, correct, or expand them. But the documentary record is the foundation. Everything else is decoration.

The Genealogical Proof Standard

Serious genealogists follow the Genealogical Proof Standard (GPS), a framework developed by the Board for Certification of Genealogists. The GPS requires five elements before a conclusion can be considered proved:

Reasonably exhaustive search. You must search all relevant sources, not just the easy or obvious ones. If you found your ancestor in one census but did not check the others, you have not conducted a reasonably exhaustive search.

Complete and accurate citations. Every piece of evidence must be cited to its source -- not just "census record" but the specific census, year, state, county, enumeration district, page, and line number. Precise citation allows others to verify your work and allows you to retrace your steps.

Analysis and correlation of evidence. Evidence must be analyzed, not just collected. A birth date on a gravestone and a birth date on a census record may disagree. The researcher must evaluate which is more likely to be accurate and explain the discrepancy.

Resolution of conflicting evidence. Conflicts will arise. When two sources disagree, the researcher must examine the nature of each source -- its proximity to the event, its purpose, the reliability of the informant -- and reach a reasoned conclusion.

Soundly reasoned conclusion. The final conclusion must follow logically from the evidence. It must be stated clearly and supported by the evidence cited. If the evidence is insufficient, the honest conclusion is "not proved," not a guess presented as fact.

Building the Evidence Chain

The practical process of documentary research follows a pattern that applies to any family, in any place or period.

Start with what you know. Begin with yourself and work backward. Record what you know from personal knowledge and family sources: names, dates, places, relationships. These are your starting points, not your conclusions -- they will be confirmed, corrected, or contradicted by the documentary evidence.

Work from the known to the unknown. Do not start with a medieval ancestor and try to connect forward. Start with the most recent generation for which you lack documentation and find the records that document it. Then move back one generation. Then the next. Each generation is a link in a chain, and the chain must be built link by link.

Use multiple source types. A single source rarely proves a conclusion. A baptism record gives a child's name and parents' names. A census record confirms the family's location. A land record confirms the father's property. A will confirms the children's names and birth order. Together, these sources build a picture that no single source provides.

Record negative evidence. The absence of a record is evidence too. If you searched every parish register in a county and did not find your ancestor's baptism, that negative result tells you something -- perhaps the family belonged to a different denomination, or lived in a different county, or the register has gaps.

Evaluating Sources

Not all sources are created equal. The genealogist must evaluate each source's reliability based on several factors.

Proximity to the event. A record created at the time of the event (a baptism register entry on the day of baptism) is more reliable than a record created decades later (a death certificate reporting the deceased's parents' names, based on the informant's memory).

The informant's knowledge. Who provided the information? A mother reporting her child's birth date is a primary informant. A neighbor reporting the deceased's birthplace on a death certificate is a secondary informant.

The purpose of the record. Records created for legal or administrative purposes (deeds, wills, court records) are generally more reliable than records created for social purposes (newspaper notices, family Bible entries). People are more careful when legal consequences attach to the information.

The record's chain of custody. An original document is more reliable than a copy. A contemporary copy is more reliable than a later transcript. A published transcript is useful for finding records but should always be verified against the original.

The Product: A Documented Family History

The end product of documentary research is not a family tree chart. It is a narrative -- a documented story that places your ancestors in their historical context, explains what the evidence shows, acknowledges what it does not show, and connects the individual lives to the larger currents of history.

A documented family history includes source citations for every fact. It discusses conflicting evidence honestly. It distinguishes between what is proved, what is probable, and what is possible. It does not present guesses as certainties or fill gaps with imagination.

This standard may seem austere. It is. But the result is a family history that can be trusted -- a work that future generations can build on with confidence, knowing that the foundation is solid.

The stories your grandmother told you may have been true. The documentary record is how you find out. And what you find -- in the parish registers and the census returns, the deed books and the newspapers, the pension files and the cemetery stones -- is almost always more interesting, more complicated, and more human than the stories ever suggested.