February 15, 2026
DNA is a tool, not a miracle.

DNA testing can feel like opening a door you didn’t know existed. One day you’re minding your own family history business, and the next day your results show a “2nd–3rd cousin” with a last name you’ve never heard… and they’ve already built a whole family tree.
That’s the magic part.
But let’s be real: DNA is powerful, and it can change your research fast. Still, it comes with limits. Especially in Black genealogy, slavery, record loss, name changes, and forced family separation created gaps that DNA alone cannot fill. DNA works best when you pair it with records, history, and good research habits.¹
What DNA can do (the door-opening stuff)
1) Connect you to living relatives.
Autosomal DNA (the kind most people take through the big testing companies) is excellent for cousin matching because it compares how much DNA you share with other testers.² The shared DNA doesn’t tell the whole story by itself, but it can lead you to family photos, stories, and surnames that never made it into the paper trail.
2) Help you break through “brick walls.”
In Black genealogy, a brick wall often shows up around the 1870 census and earlier. The 1870 census matters because it is the first federal census after emancipation that generally lists formerly enslaved people by name.³ DNA can point you to a cluster of matches connected to the same place and community, and those clues can guide you to the right records.
3) Give you ethnicity clues (not identity instructions).
Ethnicity estimates can be helpful for a broad context, but they’re still estimates based on reference panels and statistical models. Ancestry even explains it this way: your DNA doesn’t change, but the results can change as their science improves and their reference panel grows.⁴ So treat ethnicity like a starting clue, not a final label.
What DNA can’t do (the truth that saves you frustration)
1) It can’t name your enslaved ancestor for you.
DNA won’t pop up and say, “Your 4th-great-grandmother was Maria, born 1832.” You still have to connect the DNA evidence to records like census schedules, probate files, deeds, church records, Freedmen’s Bureau materials, and local histories.¹
2) It can’t reliably hand you one exact African “tribe” or hometown.
Some services market very specific group or community connections. Those results can be meaningful, but they also depend on who is represented in the reference database and how groups are defined.⁵ That’s one reason scholars urge people to think carefully about what “origins” mean and how identity is shaped by history, migration, and politics.⁶
3) It can’t protect your feelings.
DNA testing can reveal surprises: unknown parentage, half-siblings, or family stories that don’t match the facts.¹ If you test, it helps to prepare your heart and your boundaries before you click “View Matches.”
Why Black DNA match lists can look “messy.”
Many people are shocked by how hard it is to sort out matches. Endogamy (marrying within the same community) can make matches appear closer than they really are. Also, slavery forced people into the same geographic areas for generations, which can create multiple overlapping connections. That “everybody looks familiar” feeling can be real.
Picking a testing company: where to start
If your goal is more cousin matches, database size matters.

AncestryDNA reports over 25 million customers in its DNA database.⁷
23andMe reported about 14.4 million customers (as of March 31, 2025).⁸
MyHeritage has reported 9.3+ million users in its DNA database.⁹
FamilyTreeDNA reports that 2 million people have tested.
These numbers don’t tell you which company is “best,” but they do help explain why some people get more matches in one place than another.
I have tested with all of these companies and have connected with cousins on each.
What is GEDmatch (and why people use it)?
GEDmatch is not a testing company. You don’t buy a kit from them. You upload your raw DNA file from a testing company, then use GEDmatch’s tools to compare across companies.¹⁰ Their education page explains it as a place to match with the people who have uploaded there (they reference about 1.2 million uploaded kits).¹¹ Tools like the “One-to-Many” match list help you scan for matches and start grouping them.¹²
Two services I’m cautious about (and why)
Why I’m cautious about 23andMe (for genealogy right now)
I keep coming back to three concerns. First, security. The UK Information Commissioner’s Office (ICO) fined 23andMe £2.31 million ($3.15 million USD) after investigating the 2023 cyberattack and finding failures to protect UK users’ genetic data¹³. Second, corporate instability and data questions during bankruptcy. New York’s Attorney General urged customers to consider deleting their data after the bankruptcy filing, which shows how serious these concerns have become.¹⁴ Reuters also reported on the privacy fears around customer genetic data during that period.¹⁵ Third, I pay close attention to the research ecosystem around genetic data. 23andMe explains that research participation is optional and that sharing individual-level de-identified data with collaborators requires separate consent, but I still encourage people to read those settings carefully and make the choice that fits their comfort level.¹⁶ I did test with 23andMe, but have since deleted my account.
I’m also cautious about African Ancestry (for my goals)
I understand why African Ancestry appeals to people. The idea of reconnecting is powerful. But their tests trace one direct line at a time (maternal mtDNA or paternal Y-DNA), not your whole ancestry.¹⁷ That can be meaningful, but it’s still one thread in a bigger family story. Another thing that gives me pause with this testing company is how confidently they claim the results are accurate, given that science has limits. I’m not saying the testing is fake, but I am cautious about the way a DNA match can be presented as a link to a specific present-day ethnic group or “tribe.” Identities, borders, and communities have changed over centuries, and the reference databases can’t perfectly represent everyone. I don’t want to walk away treating that match like a definitive answer about who my ancestors were, when it’s really a best-fit conclusion based on the samples available. Cost matters too: their PatriClan and MatriClan tests are listed at $299 each. A person would need to take both to trace their paternal and maternal lines. I have to weigh that against investing in records and research that can identify multiple ancestors across multiple branches.¹⁸
A quick pep talk before you click “View Matches.”
DNA testing is not a miracle. It’s a tool. A strong one. But the best results come from patience, good notes, and pairing DNA with documents and historical context. And if you want help turning matches into real people (without spiraling at 3 a.m.), that’s exactly what I do. I help clients connect DNA evidence to records, communities, and history so their results become more than percentages. They become family.

If you’re still processing a surprise match, go back and read my blog “When DNA Matches Reveal Unexpected Family Connections” for a reminder that your results can bring both answers and new questions. And if the paper trail is weighing heavily on you, “The Emotional Impact of Genealogy Research” blog is there for the moments when the truth is real, painful, and still worth naming.
Sources
National Human Genome Research Institute, “Healthcare Provider Direct-to-Consumer Genetic Testing FAQ,” last updated June 14, 2023, https://www.genome.gov/For-Health-Professionals/Provider-Genomics-Education-Resources/Healthcare-Provider-Direct-to-Consumer-Genetic-Testing-FAQ. (Genome.gov)
International Society of Genetic Genealogy (ISOGG), “Autosomal DNA Statistics,” accessed February 16, 2026, https://isogg.org/wiki/Autosomal_DNA_statistics. (ISOGG)
FamilySearch Wiki, “African Americans in the U.S. Federal Census, 1870–1890,” last edited December 8, 2025, https://www.familysearch.org/en/wiki/African_Americans_in_the_U.S._Federal_Census%2C_1870-1890_-_International_Institute. (FamilySearch)
Ancestry, “Deep Dive: AncestryDNA 2025 Origins Update,” October 9, 2025, https://www.ancestry.com/c/ancestry-blog/dna/ancestrydna-2025-origins-update. (Ancestry)
LaKisha T. David, “Addressing the Feasibility of People of African Descent Finding Living African Relatives Using Direct-to-Consumer Genetic Testing,” American Journal of Biological Anthropology 181, no. 2 (2023): 163–165, https://doi.org/10.1002/ajpa.24705. (Wiley Online Library)
Sarah Abel, “Of African Descent? Blackness and the Concept of Origins in Cultural Perspective,” Genealogy 2, no. 1 (2018): 11, https://doi.org/10.3390/genealogy2010011. (MDPI)
Rekha Angara et al., Ancestral Regions 2025 White Paper (AncestryDNA, last updated October 9, 2025), https://www.ancestrycdn.com/support/us/2025/10/2025ancestralregionswhitepaper.pdf. (Ancestry)
23andMe Holding Co., “Annual Report on Form 10-K (FY Ended March 31, 2025),” filed June 11, 2025, https://content.edgar-online.com/ExternalLink/EDGAR/0001628280-25-030786.html?dest=mehcq-20250331xexx321_htm&hash=c37b1a19f0594ef55d61c9e160959faa58d5808d32de65c93b990299d6bf432c. (EDGAR Online)
The DNA Geek, “The End of an Era: Uploads at MyHeritage,” May 29, 2025, https://thednageek.com/the-end-of-an-era-uploads-at-myheritage/. (The DNA Geek)
GEDmatch, “What Is GEDmatch?” accessed February 16, 2026, https://www.gedmatch.com/education/what-is-gedmatch/. (GEDmatch)
Ibid. (GEDmatch)
GEDmatch, “How to Use One-to-Many Matching,” accessed February 16, 2026, https://www.gedmatch.com/education/how-to-use-one-to-many-matching/. (GEDmatch)
Information Commissioner’s Office (UK), “23andMe Fined £2.31 Million for Failing to Protect UK Users’ Genetic Data,” June 17, 2025, https://ico.org.uk/about-the-ico/media-centre/news-and-blogs/2025/06/23andme-fined-for-failing-to-protect-uk-users-genetic-data/. (ICO)
Letitia James, New York State Attorney General, “Consumer Alert: Attorney General James Urges 23andMe Customers to Contact Company to Delete Data,” press release, March 25, 2025, https://ag.ny.gov/press-release/2025/attorney-general-james-urges-23andme-customers-contact-company-delete-data. (New York State Attorney General)
Bhanvi Satija and Siddhi Mahatole, “New York AG Urges 23andMe Users to Delete Accounts as Bankruptcy Fuels Privacy Concerns,” Reuters, March 25, 2025, https://www.reuters.com/business/healthcare-pharmaceuticals/new-york-attorney-general-urges-23andme-users-delete-their-data-2025-03-25/. (Reuters)
23andMe, “Research Participation and Consent,” accessed February 16, 2026, https://customercare.23andme.com/hc/en-us/articles/212195708-Research-Participation-and-Consent; and 23andMe, “Individual Data Sharing Consent,” accessed February 16, 2026, https://customercare.23andme.com/hc/en-us/articles/115015674488-Individual-Data-Sharing-Consent. (23andMe Customer Care)
African Ancestry, Inc., “FAQ,” accessed February 16, 2026, https://africanancestry.com/pages/faq. (African Ancestry)
African Ancestry, Inc., “PatriClan Test Kit,” accessed February 16, 2026, https://africanancestry.com/products/patriclan-test-kit. (African Ancestry)
Alex Haley “In every conceivable manner, the family is link to our past, bridge to our future.”








