Family Tree Fails: 11 Embarrassing Mistakes Every Genealogist Has Made

Marc McDermott
First Published: | Updated: January 18, 2025
PDF document icon

Save for Later. Download the PDF

Save this blog as a PDF and revisit it whenever you want. We'll send you a copy via email.

We’ve all royally screwed up our family trees at some point. It’s time to air out our dirty laundry and learn from our collective face-palms.

Why? Because knowledge is power, people. And because laughing at ourselves is good for the soul.

So, which of these 11 epic fails have you chalked up? Get ready to check them off, learn from them, and maybe laugh at yourself a little. Because let’s face it, if you’re not making mistakes, you’re not really trying.

1. The “Same Name” Snafu

You’ve been there. We’ve all been there. You’re cruising through records like a boss, adding John Smiths left and right. You’re on fire! Then it hits you. Wrong John Smith. Oops.

Historical naming patterns are a minefield. 18th-century Scotland? Hope you like Alexander and Donald. A lot. Colonial America? John, William, and Thomas as far as the eye can see.

Pro tips to avoid this mess:

  1. Cross-reference everything. Names, dates, locations, occupations. All of it.
  2. Create detailed notes. Future you will thank you.
  3. Use middle names, nicknames, and suffixes. John Jacob Jingleheimer Schmidt is easier to track than plain old John Schmidt.
  4. Consider spelling variations. Your John Smith might be Jon Smyth or Jahn Smythe.

Remember: in genealogy, assumptions are the enemy. Question everything. Verify twice. Maybe then you’ll avoid adding Great-Uncle John’s evil doppelganger to your tree.

2. The Eager Ancestor Addition

It’s 2 AM. You’re on your fifth cup of coffee. That shiny leaf on Ancestry.com is calling your name. You click. You add. You celebrate.

Not so fast, hotshot.

Blindly copying others’ research is a recipe for disaster. That juicy info could be as reliable as a chocolate teapot.

How to avoid this trap:

  1. Treat every new piece of info with healthy skepticism.
  2. Verify, verify, verify. Then verify again.
  3. Don’t trust user-submitted trees blindly.
  4. Look for original documents.
  5. Keep track of your sources.
  6. Take breaks. Tired you makes mistakes.

Remember: slow and steady wins the race. Quality over quantity, always.

3. The Date Dilemma

Numbers don’t lie, but genealogists sure can misinterpret them.

Ever noticed Great-Grandma gave birth at the ripe old age of 3? Or that Uncle Bob was born 20 years after his father died? Yeah, that’s not how time works, folks.

Combat these chronological conundrums:

  1. Use a good calendar and calculator. Your mental math skills aren’t as good as you think.
  2. Create timelines for each individual.
  3. Pay attention to historical context.
  4. Be aware of different calendar systems.
  5. Don’t forget leap years.
  6. Consider cultural practices.
  7. Be cautious with estimated dates.

Your family tree should not defy the laws of physics. Unless you’re descended from Time Lords. In which case, carry on.

4. The Translation Trap

Ah, international research. The thrill of discovery, the agony of translation.

One misplaced accent, and suddenly your ancestor’s occupation goes from “baker” to “undertaker”. Quite the career change, eh?

Navigate the linguistic minefield:

  1. Don’t trust Google Translate with your family history. Just don’t.
  2. Learn key genealogical terms in relevant languages.
  3. Use reputable translation dictionaries.
  4. Consult native speakers or professional translators.
  5. Be aware of regional dialects and historical language changes.

Your ancestors deserve better than linguistic butchery. Do them proud.

5. The Assumption Avalanche

Assumptions are the termites of genealogy. They eat away at your research until everything comes crashing down.

“They have the same surname, so they must be related!” Nope.
“Women always took their husband’s name back then!” Not necessarily.
“People didn’t travel far in those days!” Tell that to the Vikings.

Avoid the avalanche:

  1. Question everything. Even things you “know” to be true.
  2. Look for evidence to support (or disprove) your theories.
  3. Be open to alternative explanations.
  4. Learn about historical context and social norms.
  5. Don’t let wishful thinking cloud your judgment.

Remember: in genealogy, assuming makes an ass out of you and your entire family tree.

6. The Census Circus

Census records. Can’t live with ’em, can’t live without ’em.

Enumerators made mistakes. Transcribers made mistakes. And let’s be honest, sometimes our ancestors flat-out lied. Shocking, I know.

Navigate the census circus:

  1. Cross-reference with other sources.
  2. Be aware of common transcription errors.
  3. Look at original images, not just transcriptions.
  4. Consider reasons for misinformation (age vanity, anyone?).
  5. Use census records as clues, not gospel truth.

Sorry, but Great-Grandpa probably wasn’t actually 150 years old in 1880. Unless he was. In which case, what’s his secret?

7. The Photographic Faux Pas

“And this is a picture of Great-Aunt Mildred in 1920!”

Is it though? Is it really?

Mislabeling photos is the genealogist’s equivalent of putting diesel in a petrol car. It’ll mess things up for a long time to come.

Picture perfect tips:

  1. Learn to date photos by clothing, hairstyles, and photographic techniques.
  2. Label everything. But not with a Sharpie on the back of the photo, for crying out loud.
  3. Scan and digitally label photos.
  4. Cross-reference with other family photos and documents.
  5. Be cautious with inherited photo identifications. Great-Grandma might have been mistaken too.

Future generations will thank you. Or at least not curse your name.

8. The Source Citation Slip-up

Source citations are like flossing. Everyone knows they should do it, but many skip it because it’s a pain.

Don’t be that person. Cite your sources. All of them. Even the ones you think you’ll remember. Spoiler alert: you won’t.

Citation salvation:

  1. Cite as you go. Don’t wait until later. Later never comes.
  2. Use a consistent citation format.
  3. Include enough information to relocate the source.
  4. Cite even when you’re “just browsing”.
  5. Use genealogy software to help manage citations.

Future you (and future generations) will thank you when they’re not playing genealogical detective.

9. The Technology Tumble

The internet is amazing. It’s also a trap.

Not everything is online. Shocking, I know. But it’s true. There’s a whole world of records out there in dusty archives and county courthouses.

Avoid the tech tumble:

  1. Balance online and offline research.
  2. Don’t trust every hint from genealogy websites.
  3. Learn to use advanced search techniques.
  4. Understand the limitations of OCR and indexing.
  5. Back up your data. Seriously. Do it now.

Remember, just because it’s on the internet doesn’t mean it’s true. I’m looking at you, person who claims to be descended from Charlemagne, Elvis, AND aliens.

10. The Ancestor Amnesia

You’re so focused on your direct lineage that you forget about all those pesky siblings, cousins, and in-laws. Big mistake. Huge.

Collateral relatives can be your best friends in genealogy. They might hold the key to breaking down those brick walls.

Cure ancestor amnesia:

  1. Research entire family units, not just direct ancestors.
  2. Follow siblings through their lives. They might lead you to parents’ death records or other valuable info.
  3. Pay attention to witnesses on documents. They’re often relatives.
  4. Research neighbors. People often moved in family groups.
  5. Don’t ignore those “irrelevant” cousins. They might have the family Bible you’ve been searching for.

Remember: your ancestors didn’t live in a vacuum. Neither should your research.

11. The Heirloom Hullabaloo

Family heirlooms and stories are genealogical gold. They’re also often fool’s gold.

That family crest? Probably bought at a gift shop. The story about being descended from royalty? Take it with a grain of salt. Or maybe the whole salt shaker.

Handle heirlooms with care:

  1. Treat family stories as clues, not facts.
  2. Research the provenance of heirlooms.
  3. Be open to debunking family myths.
  4. Use DNA testing to verify (or disprove) family legends.
  5. Remember that the truth can be just as interesting as the myth.

Just because Great-Grandpa said it doesn’t make it true. Sorry, Great-Grandpa.

We All Make Mistakes

We all make mistakes. It’s part of the genealogy game. The key is to learn from them, laugh about them, and keep digging.

So the next time you realize you’ve accidentally made your great-grandmother her own aunt, take a deep breath. Pour yourself a drink. And remember, even the pros screw up sometimes.

Now get back out there and keep making those beautiful, messy family trees. Just maybe double-check your facts first, okay?

Additional Resources

Want to level up your genealogy game? Check these out:

  1. Evidence Explained” by Elizabeth Shown Mills – The bible of source citation.
  2. Mastering Genealogical Proof” by Thomas Jones
  3. The Family Tree Problem Solver: Tried-and-True Tactics for Tracing Elusive Ancestors” by Marsha Hoffman Rising
  4. Legacy Family Tree Webinars – Expert-led webinars on various genealogy topics.
  5. Local genealogical societies – Because sometimes, you need to talk to real humans about your obsession.

Remember: in genealogy, learning never stops. Embrace it. Your ancestors would be proud.

About the author

Comments

  1. I kept getting stuck on an ancestor because I matched with someone else’s family tree, similar names and relationships but born in an area several miles from my traditional family area. I almost copied the link but saw that the individual I identified was only 7 when he died, so could not have sired any of the descendants in the other tree or mine. I wrote to the owner of the other tree but he ignored me.

    Reply
  2. Some good advice! A picture I mislabeled on Ancestry years ago still comes back to haunt me. Another thing, make sure you want to know. I know several people that discovered their pious, cookie baking grandma partied pretty hard when she was younger.

    Reply
  3. I have videotape of my father telling me that his grandfather, great-uncle, and great-aunt were triplets. He was completely certain of that. Except … that is sure looks like aunt Jane was born 4/1/1857, uncle Joe was born 3/9/1859, and grampa was born 12/28/1861 or 12/28/1860 (application for a Civil War orphan’s pension gives the year as 1861, census records, death certificate, and tombstone give 1860). I’m inclined not to believe they were triplets. I would love to know where Dad got that idea. Grampa’s Mom died 2/1863 of disease (possibly small pox). Grampa’s Dad died 2/1864 of disease (almost certainly dysentery) in service of the Union Army. The kids were raised by maternal aunt & uncle and paternal grandmother. I’m inclined to think he didn’t know his birth year and the application for a pension is correct. I have good backup for the DOB of aunt Jane and uncle Joe which suggests that the informant on the pension app was not fudging to get the kids an extra year of government support. In the long run it doesn’t matter, but it will forever be an asterisk and an explanation.

    Reply
Leave a Comment