Genealogical Proof Standard #2: Clear, Accurate Source Citations

AI generated

In my last post, we talked about the first element of the Genealogical Proof Standard—reasonably exhaustive research. This principle requires us to look beyond easily accessible sources and examine all relevant records, no matter how obscure, to answer a specific research question.

And eventually, after all that digging, we finally uncover the record we’ve been hunting for. We download it, attach it to our tree, and happily move on.

After all, we know where we found it.

Or at least… we think we do. Fast‑forward a few years.

Now we’re staring at that same record wondering, Where in the world did I get this? Maybe our software's citation says only “1860 census.” Maybe we typed “Ancestry.” Maybe we skipped creating a citation altogether and only have a digital file—and it's blessed with one of those unforgettable names like 20260530_001.jpg.

Suddenly, finding the record again feels almost as hard as finding it the first time.

And that's where the second element of the GPS comes in: complete and accurate source citations.

A citation isn’t busywork. It has an actual job to do. A good citation answers a very practical question:

Where did you find that information, and how can I (or anyone else) find it again?

Why We Cite Our Sources

It’s easy to think of citations as a chore, but they actually make us better researchers.

When we slow down to create a citation, we’re forced to look closely at the record in front of us. What exactly are we viewing? An original? A copy? An index? A digital image of a microfilm? Who created it? Where is the original kept?

Those questions don’t just help us write a citation—they help us understand the strength and limitations of the source itself.

A clear citation also lets other researchers see where our information came from and judge the quality of our evidence. If I make a claim about an ancestor’s birth, marriage, or death, someone else should be able to look at my citation, trace my steps, and—whenever possible—examine the record for themselves.

Complete, accurate citations can also save us from repeating our own work. Years from now, I don’t want to wonder whether I checked a certain collection or where I found a document buried among hundreds of files. A citation is simply a breadcrumb trail back to our evidence.

Citations also help us separate our own research from the work of others. Genealogists rely on books, databases, websites, and other people’s research all the time. When another researcher's work supports our own, a citation gives them credit and makes our evidence trail easy to follow.

Don’t Let Citations Intimidate You

If you’re new to genealogy, a long citation can look confusing—names, numbers, semicolons, repositories, publication details. It’s a lot.

But you don’t have to create perfect citations right away. Start by learning to identify what you’re looking at.

Genealogists look at citations in terms of five simple elements:

Who created the record? What is the record or collection? When was it created or published? Where is it housed or accessed? Wherein is your specific information—page, line, entry, image number?

These questions help you understand the source so you can describe it accurately. Even if your citation isn't perfect, it is far better than no citation at all.

Resources That Help Us Learn to Cite Well

These two primary resources can help you build the perfect citation: The Chicago Manual of Style (CMOS) Evidence Explained: Citing History Sources from Artifacts to Cyberspace by Elizabeth Shown Mills

CMOS provides a strong foundation for historical writing, but genealogy throws us curveballs a standard guide isn't designed to handle. Evidence Explained, the genealogical gold standard, helps us navigate the complex records—courthouse files, manuscripts, microfilm, databases, digitized images, and sources that exist in multiple formats.

The one important thing to remember is that they are guides, not templates.

You don’t create a citation by finding an example that looks "close enough" and swapping in your ancestor’s name. You start by understanding the source.

For example, here’s a citation from my own research:

1860 U.S. census, Taney County, Missouri, population schedule, Newton, p. 861 (penned), p. 7 (stamped), dwelling 41, family 42, John Mitchell household; digital image, Ancestry (https://www.ancestry.com : accessed 7 January 2012); citing NARA microfilm publication M653, roll 658.

That citation tells you exactly what I looked at—a digital image of a specific page of the population schedule—and it traces the image back to the original microfilm.

Compare that with a death certificate:

“Texas, U.S., Death Certificates, 1903–1982,” database with images, Ancestry (https://www.ancestry.com : accessed 1 March 2010), state file no. 3641, entry for R. F. Wickliffe, died 22 January 1946; citing Texas Department of Health, Bureau of Vital Statistics, Austin.

No dwelling numbers or census pages here—because it’s a completely different kind of source.

And that's the point.

Even within the same type of record—census, death certificates, probate files—citations can vary a bit depending on how the record was created, how we accessed it, or what details are available. As genealogy expert Elizabeth Shown Mills famously notes, citation work is often more of an art than a strict science.

If today’s post inspires you to revisit a few of your older citations, start with just one record. Rewrite its citation using the five elements, and notice how much more confident you feel about the source itself.

In the next Genealogical Proof Standard installment, we’ll build on that foundation as we explore analysis and correlation—the part of the process where your well‑documented sources begin working together to reveal patterns, resolve conflicts, and strengthen your conclusions.

And if you’d like to share what you discovered while reviewing an old citation—or even just your thoughts on today’s topic—I’d love to hear from you in the comments. It’s always encouraging to see how other genealogists are growing in their research.