AI for Family History and Genealogy

What AI actually does for family history

Think of AI as a tireless research assistant. It does not know your family, but it is very good at reading, searching and summarizing -- the tedious parts of the hunt. It can turn handwritten old documents into searchable text, suggest records that might match your ancestor, translate a foreign-language record, and explain an old term or occupation you have never heard of.

What it does not do is prove anything. Every helpful suggestion is still a guess that you, the researcher, must confirm against the real document. AI speeds up the finding; you still do the confirming.

FamilySearch Full-Text Search -- free and powerful

This is the tool I point people to first, because it is free and genuinely remarkable. FamilySearch is run by a nonprofit, and a free account gets you in. Full-Text Search uses AI handwriting recognition to turn handwritten historical documents into searchable text. As of March 2026 it had processed about 2.3 billion record images -- deeds, wills, court papers and more -- all free to view with a free account.

That means you can type an ancestor's name and find them mentioned inside a handwritten will or land record that no one had indexed before. For a step-by-step, see my guide FamilySearch, Step by Step.

Reading old handwriting

The old cursive in an 1800s record can be nearly impossible to read. AI handwriting recognition looks at the loops and strokes and turns them into typed text you can read and search -- names, dates and places you might have missed by eye. It is not perfect, though. The AI will misread some letters, especially unusual names and worn ink, so treat the typed version as a helpful reading and check it against the image. A single wrong letter or digit can send you chasing the wrong person.

How Ancestry and MyHeritage use AI

Ancestry

Ancestry uses AI in its Hints (little leaf suggestions of possible records or matches), in ThruLines (which suggests how you may connect to DNA matches through shared ancestors), and to transcribe old records. It is a subscription service. These hints are a fine starting point, but they are suggestions, not proof -- and other people's trees can be wrong too.

MyHeritage Scribe AI and GAIA

In March 2026 MyHeritage released Scribe AI, which can transcribe and translate old records with context -- a real help if your family came from overseas. MyHeritage also previewed GAIA, a genealogy AI assistant chatbot you can ask questions in plain words. A preview is early and still improving, so use it for ideas and direction, not as the source for a fact in your tree.

Using ChatGPT or Gemini as a helper

You do not need a genealogy subscription to get AI help. A free general helper like ChatGPT or Google Gemini can explain what an old occupation like cordwainer meant, suggest where a marriage record from 1885 rural Ohio might be kept, summarize a long obituary to the key facts, or help you draft a family story. Ask in plain words and give as much detail as you can. For a gentle start, see my guide ChatGPT for Absolute Beginners.

Explaining old terms, and finding records

Old records are full of words we no longer use -- strange jobs, abbreviations, and diseases with forgotten names. Ask the AI what a cooper did, what consumption meant on a death record, or what relict of means in an old will, and you get a clear answer in seconds. It can also suggest which office, archive or record type usually holds a document you are missing, turning a blank page into a checklist of places to try.

Summarizing and writing up your findings

Paste in a long obituary or will and ask the AI for the people, dates and relationships it mentions. Treat the summary as a first pass, and read the full original too, because a summary can drop a small detail -- a maiden name, a second marriage -- that turns out to be the very clue you needed. When you are ready to share your work, give the AI your verified facts and let it help draft a readable family history. Only feed it facts you have confirmed, or it will happily invent plausible details that never happened. For recording relatives, see my guide Record Family Stories and Oral Histories.

The golden rule: verify against the original

This is the most important habit in family history: never add a fact to your tree until you have read the original record yourself. AI transcriptions and hints contain mistakes -- a misread letter, a wrong year, a similar name from the next county can quietly send your research down the wrong branch for years. When AI or a hint points you to a record, open the actual image, confirm the name, date, place and relationship with your own eyes, and save the source citation before it goes in your tree.

When AI invents an ancestor

Here is a danger unique to AI: it can confidently make things up. Ask a general helper to fill in a gap -- who were this person's parents, what ship did they arrive on -- and it may produce a clean, confident answer that is pure invention. Be especially wary of made-up sources: AI can cite a book, a record number or a website that sounds real but is not. Always check that a source actually exists and actually says what the AI claims, and confirm every name, date and relationship against a real document.

Costs, privacy and staying organized

FamilySearch and its Full-Text Search are free. Ancestry and MyHeritage are paid subscriptions, often with free trials -- note the renewal date and cancel before it renews if you are not keeping the service. Your tree also holds personal details about living relatives, so read how a site shares data and mark living people private. Finally, attach a source to every fact you add: a small tree where every fact is proven is worth far more than a giant one built on unchecked hints. See my guides Family History Online -- Ancestry and FamilySearch and DNA Testing Kits for more.

What's in the printable PDF

• What AI can and cannot do for family history research
• FamilySearch Full-Text Search and reading old handwriting
• How Ancestry Hints, ThruLines and transcription use AI
• MyHeritage Scribe AI, plus the GAIA assistant preview
• Using ChatGPT or Gemini to explain terms and write stories
• The golden rule: verify every fact against the original record
• How AI can invent an ancestor or a source, and how to catch it
• Costs, privacy settings and keeping a well-sourced tree

Why I wrote this

I write these as printable handouts because a guide you can keep in a drawer beats a web page you have to find again. No jargon, no judgment, no rushing. If you'd rather have someone sit beside you and go through it together, that's a flat $99 first visit with the 30-day follow-up included — serving Portage County from Atwater, Ohio. — Bill