Tuesday, December 17, 2024

Ask AI: "What online tools can be used to perform reverse genealogy and/or descendancy research?"

 The Artificial Intelligence tools (like ChatGPT, Perplexity, Gemini, Meta, CoPilot and Claude) can provide much useful and nearly instant information about subjects in a concise format, especially when they have been pre-trained on a large volume of information about the subjects.

I wondered if the FREE AI tools could provide me with information about performing "descendancy" or "reverse genealogy" research.  


(image created on ChatGPT4)

1)  I chose to use the responses from free ChatGPT4.  

My first Prompt was:  "You are a professional genealogist.  What online tools can be used to perform reverse genealogy and/or descendancy research?"

The ChatGPT4 response was:

Reverse genealogy and descendancy research focus on identifying the descendants of a particular ancestor rather than tracing back through their ancestors. Below is a list of online tools and resources that are particularly useful for this type of research:

Genealogy Websites with Tree-Building and Record Collections

    1. Ancestry.com

        ◦ Features: Public family trees, DNA matches, and vast collections of vital, census, probate, and military records.

        ◦ Tools: Ancestry Hints, ThruLines (for DNA users), and descendancy tree views.

        ◦ Strategy: Start with an ancestor, look for descendants in census records, and review public family trees.

    2. FamilySearch.org (Free)

        ◦ Features: Shared family tree with integrated sources and descendancy research tools.

        ◦ Tools: "View Descendancy" option (from the ancestor profile) and collaborative family tree updates.

        ◦ Strategy: Search for descendants using sources like census, marriage, and probate records.

    3. MyHeritage.com

        ◦ Features: Global records, family trees, and DNA tools for finding cousins and descendants.

        ◦ Tools: Smart Matches, Record Matches, and family tree building with historical records.

        ◦ Strategy: Leverage MyHeritage’s historical newspapers and obituaries to locate descendants.

    4. Findmypast.com

        ◦ Features: UK and Ireland-focused records, including parish records, wills, and directories.

        ◦ Strategy: Ideal for researching descendants in the British Isles, particularly through probate and parish records.

    5. Geni.com

        ◦ Features: Collaborative family tree with a focus on relationships and descendants.

        ◦ Tools: Descendancy views and connections to other researchers.

Specialized Record Databases

    6. Census Records

        ◦ Websites: FamilySearch, Ancestry, MyHeritage, Findmypast, or National Archives.

        ◦ Strategy: Use successive census records to track family units over time and identify children, grandchildren, and household changes.

    7. Obituaries and Newspaper Archives

        ◦ Websites:

            ▪ Newspapers.com (subscription)

            ▪ GenealogyBank.com

            ▪ Chronicling America (Free)

        ◦ Strategy: Search for obituaries to identify children, grandchildren, and     extended family.

    8. Find a Grave and BillionGraves

        ◦ Features: Burial records often include family links, descendants, and biographical information.

        ◦ Strategy: Follow linked family members and check for memorials with descendant information.

    9. Probate and Wills Records

        ◦ Websites: Ancestry, FamilySearch, and state/county archives.

        ◦ Strategy: Probate records often list heirs, who can be used to track descendants.

DNA Testing and Analysis Platforms

    10. AncestryDNA

        ◦ Features: ThruLines tool suggests descendants of shared ancestors through DNA matches.

        ◦ Strategy: Contact DNA matches who descend from your target ancestor.

    11. 23andMe, MyHeritageDNA, and FamilyTreeDNA

        ◦ Features: Descendant connections through shared DNA and family tree integration.

        ◦ Strategy: Use shared matches and surname searches to identify descendants.

    12. GEDmatch (Free and Paid Options)

        ◦ Features: Third-party DNA analysis tool that connects matches from multiple testing companies.

        ◦ Strategy: Identify clusters of descendants and analyze genetic links to target individuals.

Collaborative and Community Platforms

    13. WikiTree.com (Free)

        ◦ Features: Collaborative one-world tree with a strong focus on sourcing and descendants.

        ◦ Tools: Descendancy and relationship views.

    14. Facebook Genealogy Groups

        ◦ Examples: Regional, surname-specific, or descendancy-focused groups.

        ◦ Strategy: Engage with other researchers who may have information on your ancestor's descendants.

    15. RootsWeb Mailing Lists and Forums (Now part of Ancestry)

        ◦ Strategy: Search archives of surname or location-specific lists for information on descendants.

Other Useful Tools

    16. City Directories and Phone Books

        ◦ Websites: Ancestry, MyHeritage, or archive.org (digitized directories).

        ◦ Strategy: Track descendants in a specific location over time.

    17. Historical Maps and Atlases

        ◦ Websites: Historic Map Works, USGenWeb, or David Rumsey Map Collection.

        ◦ Strategy: Locate descendants geographically and cross-reference with directories or census records.

    18. Online Court and Land Records

        ◦ Websites: Local or state repositories, Bureau of Land Management (BLM) GLO records.

        ◦ Strategy: Land transfers and court cases often list heirs and descendants.

    19. Obituary and Marriage Indexes

        ◦ Examples: U.S. Obituary Collection on Ancestry, or local newspaper archives.

        ◦ Strategy: Search for descendant details like spouses and children.

Advanced Strategies

    • Cluster Research: Study collateral relatives and neighbors to locate extended family connections.

    • Name Variants and Misspellings: Account for changing spellings and nicknames when searching descendants.

    • Chronological Analysis: Build timelines for your ancestor's children and grandchildren to locate migration patterns.

By combining these tools and resources, you can systematically uncover descendants and build a thorough picture of your ancestor’s legacy.

2)  My second prompt was:  "What research process would you recommend to find all of the descendants of a historical couple - for instance, 3rd great-grandparents?"

The ChatGPT4 response was:

Finding all the descendants of a historical person, like your 3rd great-grandparents, requires a systematic approach that incorporates careful documentation, thorough analysis, and persistence. Here’s a step-by-step process:

Step 1: Start with What You Know

    1. Identify the Ancestor Couple

Begin with the 3rd great-grandparents and gather all the information you already have, such as:

        ◦ Names

        ◦ Birth, marriage, and death dates/places

        ◦ Locations they lived

        ◦ Known children

    2. Verify Existing Information

        ◦ Use sources like census records, vital records, and probate files to confirm the accuracy of their information and any known children.

        ◦ If this ancestor is already in a shared online family tree (e.g., Ancestry, FamilySearch, or WikiTree), review what’s been documented and cross-check with records.

Step 2: Build a Descendancy Tree

    1. Identify All Known Children

        ◦ Document all the children of the couple, including birth and death dates, spouses, and locations.

        ◦ Use records like baptism/church registers, wills, and family Bibles for verification.

    2. Expand to Grandchildren and Beyond

        ◦ For each child, locate their spouses, children, and grandchildren. Use a mix of census records, marriage records, death certificates, and obituaries to trace descendants through multiple generations.

        ◦ If children moved, identify migration patterns through land records, directories, or newspapers.

    3. Use Online Tools to Build the Tree

        ◦ Platforms like FamilySearch or Ancestry allow for detailed descendancy trees.

        ◦ Focus on tracing each line (descendants of every child).

Step 3: Utilize Specific Record Sets to Identify Descendants

1. Census Records (1790–1950 for the U.S.)

    • Track descendants through successive censuses, noting family members in the household.

    • Look for children not previously identified or grandchildren living with grandparents.

2. Vital Records (Birth, Marriage, and Death)

    • Birth Records: Identify children for each generation.

    • Marriage Records: Confirm spouses and subsequent generations.

    • Death Records: Look for obituaries, which often list children and grandchildren by name.

3. Probate and Wills

    • Look for the ancestor’s probate records and those of their descendants.

    • Wills often list heirs, including children and grandchildren.

4. Newspapers and Obituaries

    • Search obituaries for descendants. Newspapers often include details of children, grandchildren, and great-grandchildren.

    • Check Newspapers.com, Chronicling America, and local library archives.

5. Cemetery and Burial Records

    • Use Find a Grave and BillionGraves to locate descendants buried in family plots or nearby.

    • Review linked family members on memorial pages.

6. DNA Testing

    • DNA tests (e.g., AncestryDNA, MyHeritageDNA) can help identify living descendants.

    • Collaborate with DNA matches to uncover unknown lines.

7. Military Records

    • Look for military service records for descendants, particularly draft registrations, pensions, and service files.

8. Land and Court Records

    • Examine property deeds and court records for evidence of inheritance or family ties.

    • Look for descendants named as heirs in land transactions.

Step 4: Broaden the Search

    1. Search for Collateral Relatives

        ◦ Investigate siblings and cousins of your 3rd great-grandparents to locate extended family that may have remained in contact with your direct descendants.

    2. Trace Migration Patterns

        ◦ Use passenger lists, naturalization records, and local histories to track descendants who moved to other states or countries.

    3. Explore Historical Context

        ◦ Learn about local events (wars, epidemics, migrations) that may explain family movements or the loss of records.

Step 5: Collaborate and Leverage Shared Trees

    1. Search Public Family Trees

        ◦ Use platforms like Ancestry, MyHeritage, Geni, and FamilySearch to find researchers who may have already documented some descendants.

        ◦ Contact tree owners and share findings to avoid duplication of efforts.

    2. Join Genealogy Forums and Groups

        ◦ Post queries in relevant forums (e.g., RootsWeb, Facebook genealogy groups) to connect with distant cousins who may have additional information.

Step 6: Organize and Document Findings

    1. Create a Descendancy Chart

        ◦ Use genealogy software (e.g., RootsMagic, Legacy Family Tree, or Family Tree Maker) to build a detailed chart of all descendants.

        ◦ Include source citations for every fact to ensure accuracy.

    2. Document Alternate Names and Variants

        ◦ Record name spellings, nicknames, and changes (e.g., due to marriage or immigration).

    3. Flag Brick Walls and Open Questions

        ◦ Note descendants who cannot yet be traced or identified and revisit these gaps periodically.

Step 7: Verify Living Descendants

    1. Use Modern Tools for Living People

        ◦ Search online directories (e.g., WhitePages, Spokeo) or social media (e.g., Facebook, LinkedIn) to find living descendants.

        ◦ Use privacy-appropriate methods to contact and collaborate with them.

    2. DNA Collaboration

        ◦ Engage with DNA matches to confirm relationships, validate findings, and discover new descendant branches.

Ongoing Maintenance

    • Revisit descendant lines regularly to incorporate newly available records or DNA results.

    • Keep track of sources and document any challenges encountered during research.

This process ensures a thorough and methodical uncovering of all descendants while preserving the integrity of your findings.

3)  The other AI tools provided shorter and similar responses.  Only Perplexity provided useful website links for the first prompt, including:
4)  Is this information complete and accurate?  We always have to confirm information that has been summarized, analyzed and presented by the AI Tools, and they may not be complete or accurate.  This information looks interesting, useful and helpful, especially concerning the research process.  But it is probably incomplete since the request is very general.  There are many other online and paper-based resources that are not addressed in the response.  I would add the FamilySearch Family Tree for the collaborative tree aspect.  

I like how ChatGPT4 organizes these responses in a step-by-step, outline and bullet point discussion format.

Since I've been working through this process for over 6 years now, the description above is essentially what I have been doing for my 4th great-grandparents, essentially to help find common ancestors of DNA matches.  

There are no warnings about inaccurate, incomplete or missing information in the responses.  I should have asked the Chatbot "How do I prove that family history information in another person's family tree, or in a collaborative tree, or in my tree, is correct?"  That's a subject for another Ask AI post, I think.

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See all of my Artificial Intelligence-related posts at https://www.geneamusings.com/p/artificial-intelligence-posts.html

Copyright (c) 2024, Randall J. Seaver


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