The Ten Deadly Sins of a Genealogist
And how to avoid repeating them
If you’ve ever fallen down a late-night rabbit hole chasing ancestors, you’ll know how easy it is to get carried away, jumping between branches, clicking “add to tree” a little too quickly, and convincing yourself you’ve just discovered something extraordinary.
I still remember doing exactly that one evening, proudly tracing one branch of my family tree back three extra generations in a matter of hours. It felt like a breakthrough, names, dates, places all falling neatly into place. I sat back, quietly impressed with myself… until a few days later, when I realised I’d attached my entire line to the wrong family.
Not just one person, all of them!
Most of us have been there. In fact, most of us have made the same mistakes more than once. So here are ten of the most common pitfalls in family history research and how to avoid them.
Sin 1: Believing everything you find online
This is the big one.
It’s incredibly tempting to assume that if something appears in an online tree, it must be correct. Unfortunately, that’s far from the truth. Errors range from innocent transcription mistakes to completely fictional connections.
Copying and pasting without checking is the fastest way to derail your entire tree.
Always verify what you find using multiple sources. The Genealogical Proof Standard (GPS) exists for a reason, it’s about building conclusions based on solid, corroborated evidence, not wishful thinking.
Sin 2: Not recording your searches (especially the failed ones)
Early on, I only recorded my successes. Why bother noting what didn’t work?
Because you will forget.
Months or years later, you’ll return to the same ancestor and unknowingly repeat the exact same dead-end search. Keeping track of negative results saves time, sharpens your thinking, and helps you spot patterns you may have missed.
A failed search isn’t wasted effort, it’s progress documented.
Sin 3: Stopping at births, marriages, and deaths
It’s easy to treat genealogy like a checklist: birth, marriage, death, done.
But that only gives you a skeleton. The real story lies elsewhere.
Newspapers, military records, occupations, addresses, local maps, these are the details that bring your ancestors to life. They tell you how they lived, not just when they existed.
I once came across a newspaper report from 1916, an obituary for my late great-grandmother. What I expected to be a short notice turned out to be something far richer. It listed attendees from across several generations, explained their relationships to her, and even included the regiment details of one son serving in the army. It was, in many ways, like a family tree laid out neatly in a single newspaper column, information I would never have uncovered from birth, marriage and death records alone.
If your tree is just names and dates, you’re missing the best part.
Sin 4: Trying to do it all alone
Genealogy might feel like a solitary pursuit, but it doesn’t have to be.
Local family history societies, online forums, and fellow researchers can offer insights you’d never uncover on your own. Someone else may already have access to records, local knowledge, or experience in a particular area.
Asking for help isn’t a weakness, it’s a shortcut to better research.
Sin 5: The scattergun approach
When you first start, it’s tempting to chase everything at once, every branch, every hint, every possible lead.
The result? Information overload.
Without a clear plan, it becomes far too easy to accept things at face value just to keep moving forward. Before long, you’re confidently tracing the wrong family line.
Set a goal for each research session. Stay focused. Quality always beats quantity.
Sin 6: Never revisiting your earlier work
Your early research will contain mistakes. That’s normal.
As your skills improve, go back and review what you’ve already done. Not only will you spot errors, but you may also find new records that weren’t available the first time around.
Genealogy isn’t a one-pass activity, it’s repetitive. The best researchers revisit, refine, and reassess constantly.
Sin 7: Thinking everything is online
The internet is an incredible resource, but it’s not everything.
Some of the most valuable records are still sitting in archives, record offices, and libraries. Visiting these places can unlock information you simply won’t find from your desk.
And beyond the research value, there’s something unforgettable about holding a document your ancestor once touched. I remember vividly visiting an archive and being handed the military record of my great-grandfather. At the bottom was his handwritten signature, ink on paper, exactly as he had left it. In that moment, he stopped being just a name on a screen and became something far more real.
That’s something no website can quite replicate.
Sin 8: Not exploring the places your ancestors lived
Genealogy shouldn’t be confined to a screen.
Walking through the streets your ancestors once knew, seeing the landscape, the distances, the buildings, adds a whole new dimension to your understanding.
It turns abstract names into real people with real lives.
Sin 9: Being too rigid with names and spellings
Names are far less fixed than we like to think.
Spellings changed constantly, accents influenced records, and clerks wrote things down however they heard them. If you search too narrowly, you’ll miss crucial records. Over the years, I’ve come across at least a dozen different variations of my own surname, each one a reminder that consistency is a very modern luxury.
Be flexible. Use wildcards. Think creatively.
Your ancestor might be hiding in plain sight under a slightly different name.
Sin 10: Taking without giving back
Genealogy depends on generosity.
The records, transcriptions, and resources we rely on exist because volunteers gave their time to create them. Without that collective effort, the field wouldn’t function.
So consider contributing, whether it’s transcribing records, sharing your research, or helping others.
Family history is at its best when it’s shared.
Final thought
If you recognised yourself in any of these, you’re not alone.
Every genealogist, beginner or experienced, has committed at least a few of these “sins.” The key is not avoiding mistakes entirely, but learning from them.
Because in the end, genealogy isn’t just about getting it right, it’s about the journey of discovery along the way.
I spend a lot of time researching and sharing these family connections, so if this post helped you uncover part of your family story, you can support my ongoing research here:
If you’d like to follow more of my research and stories, you can explore more here:
Respectfully add #11. Search out the siblings. Nearly all of my big breakthroughs are due to researching collateral lines where you stumble into newspaper bios, obituaries and random photos.
I definitely have committed many of these. I still struggle with #2. I create a way to track but never stick with it, and the cycle repeats every time I start searching a repository and realize I've likely done the search before.