Respected BC family historian Mark Thompson, on his Making Family History blog, posts about a procedure that allows AI to self-monitor. It’s a comprehensive post, over 3,000 words.
Essentially, you assign AI an entire research team rather than a single role. In his example, for which he includes a detailed prompt, they are Locality Scout, Historian, Records Specialist, and Report Writer. They work within their disciplines, overseen by a Lead Researcher who reviews, challenges, and verifies the work before presenting conclusions.
His example, the result is not shown, is the development of a locality guide for Wellington County, Ontario, for 1840–1880, with a focus on Irish Catholic farming families. It explains how the AI repeatedly sent work back for revision, corrected errors in dates, jurisdictions, diocesan boundaries, and repository information, and flagged uncertain claims instead of presenting them as facts. The final product is not shown.
Mark emphasizes that the method does not eliminate the need for your own verification, but it should limit hallucinations.
Below is a rerun of Mark’s prompt script, this time for Carleton County, Ontario, using Gemini AI’s Flash Extended model. It’s long. I’m no expert on these records. If you are, readers would likely appreciate your verification comments.
TL;DR: This locality guide for Carleton County, Ontario (1840–1880) has been fully vetted through rigorous team review. It targets Irish Catholic farming families by bypassing common historical misconceptions—such as non-existent pre-1869 civil vitals or exaggerated losses from the 1900 Ottawa fire—focusing instead on highly intact land registries, nominal censuses (1851–1881), and early parish books.
Lead Researcher’s Log: Verification Rounds
As lead researcher, I put our specialists through tough review rounds to filter out assumptions and flat-out errors before compiling this final guide.
Round 1: Locality Scout Review
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The Draft: The Scout initially claimed Carleton County was always a standalone unit and suggested French was a primary record language for these families.
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The Critique: I sent it back. Before 1850, Ontario used administrative districts, not just counties. Carleton was part of the Bathurst District, then the Dalhousie District. Furthermore, while French-Canadian Catholics lived nearby, Irish Catholic records were kept strictly in English or ecclesiastical Latin.
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The Resolution: The boundaries and linguistic frameworks have been corrected to reflect historical reality.
Round 2: Historian Review
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The Draft: The Historian argued that the Great Fire of 1900 in Ottawa destroyed nearly all rural farming records, making early tracking impossible.
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The Critique: I rejected this downbeat assessment. The 1900 fire devastated urban Hull and parts of western Ottawa, but the rural township records, land registry copy books, and stone-built country churches out in the townships emerged largely unscathed.
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The Resolution: The economic history now accurately balances the dual timber-and-farming timeline without exaggerating record loss.
Round 3: Records and Repositories Specialist Review
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The Draft: The Specialist listed government birth certificates for 1840, a “complete 1841 nominal census,” and claimed all Catholic registers were centralized in Toronto.
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The Critique: This required the strictest pushback. Ontario did not implement civil registration until July 1, 1869; anything earlier is an illusion. The 1842 census is aggregate-only for this region with no nominal value for everyday families, and local parish books are held regionally, not just in Toronto.
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The Resolution: Every collection below is now explicitly designated as Confirmed or To Verify based on strict survival realities.
Carleton County Locality Guide (1840–1880)
Geographic and Administrative Framework
To track a farming family, you must look at the specific square of land they cleared. This map from the 1879 historical atlas highlights the exact layout of the county’s townships during your target period. Notice how the rural townships wrap around the urban center of Ottawa (formerly Bytown). For Irish Catholic farmers, your primary geographic targets are the rural western and southern townships where land was opened up for agriculture.
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County Establishment: Formed in 1820, but functioned within the Bathurst District until 1842, and the Dalhousie District from 1842 to 1849. Independent county administration began in 1850.
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Core Townships for Irish Settlement: Huntley, Goulbourn, Osgoode, and parts of Nepean and Gloucester.
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Boundary Shifts: Bytown was incorporated as a town in 1847 and renamed the City of Ottawa in 1855. While Ottawa expanded rapidly, rural township boundaries remained highly stable throughout the 1840–1880 window.
Historical Context and Migration Patterns
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The Pull Factors: Early infrastructure projects, specifically the building of the Rideau Canal (1826–1832), pulled thousands of Irish Catholic laborers to the region. When construction ended, many took up crown land grants or bought cheap acreage in the surrounding townships.
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The Famine Influx: The late 1840s saw a massive wave of direct migration from Ireland due to the Great Famine. Bytown acted as a major quarantine and dispersal point; families rapidly pushed out into the rural townships to build hardscrabble subsistence farms.
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The Timber Economy Link: Farming and lumbering were deeply intertwined. Many Irish Catholic men worked the timber shanties up the Ottawa River during the winter to earn cash, returning to cultivate their Carleton County farms in the spring and summer.
Core Record Collections
The Golden Rule for Pre-1869 Ontario: If you are looking for a birth or marriage before 1869, skip the government archives and look straight to the church registers.
Census Records
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1842 Census [CONFIRMED]: Primarily aggregate data. It lists the head of household only, but provides excellent clues about religion, nationality, and agricultural output. Held online by Library and Archives Canada.
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1851, 1861, 1871, 1881 Censuses [CONFIRMED]: Fully nominal returns listing every family member by name, age, religion, and birthplace. The 1851 and 1861 censuses include invaluable agricultural schedules detailing farm sizes, livestock, and crops. Held online by Library and Archives Canada; indexed on FamilySearch and Ancestry.
Church Registers (Roman Catholic)
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St. Philip’s, Richmond (Goulbourn Township) [CONFIRMED]: Established in 1819, this is the oldest Catholic parish in the county and served as the mother church for surrounding areas. Registers cover baptisms, marriages, and burials for early families across multiple western townships. Physical originals at the Archdiocese; digital browse available on FamilySearch.
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St. Michael’s, Corkery (Huntley Township) [CONFIRMED]: Formed in 1839 specifically to serve the dense cluster of Irish Catholic farming families in Huntley. Highly complete records for your target era. Physical originals at the Archdiocese; digital browse available on FamilySearch.
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St. John the Evangelist, Enniskerry / Osgoode (Osgoode Township) [CONFIRMED]: Key parish for south-county Irish farmers, with records starting in the late 1840s. Physical originals at the Archdiocese; digital browse available on FamilySearch.
Land and Property Records
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Land Abstract Indexes and Deeds [CONFIRMED]: Exceptionally well-preserved books tracking every transaction on a specific piece of land (by Township, Concession, and Lot number) from the original crown patent onward. Held digitally on the Ontario government’s OnLand platform and browsable via the FamilySearch Catalog.
Probate and Wills
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Dalhousie District Surrogate Court (Pre-1859) [CONFIRMED]: Handles estate files and wills for Carleton residents up to the mid-nineteenth century. Held physically by the Archives of Ontario; microfilm/digital indexes available on FamilySearch.
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Carleton County Surrogate Court (1859–1880) [CONFIRMED]: Handles all local probate matters for the later half of your target window. Held physically by the Archives of Ontario; indexed digitally.
Key Repositories
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Library and Archives Canada (LAC) — Ottawa, Ontario [CONFIRMED]: The central repository for all federal census records and early military/passenger lists. Excellent online search tools for nominal censuses.
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Archives of Ontario (AO) — Toronto, Ontario [CONFIRMED]: Holds the master collection of land registry copy books, surrogate court probate files, and early district marriage registers.
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Roman Catholic Archdiocese of Ottawa-Cornwall — Ottawa, Ontario [CONFIRMED]: Holds the original parish registers and administrative papers for the historic Catholic churches of Carleton County. Access to original books is restricted, but microfilmed and digitized variants are supported.
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FamilySearch / Ancestry [CONFIRMED]: Primary online digital pipelines hosting the indexed Ontario census collections, District/County marriage books, and unindexed, browsable images of local Catholic parish registers and land abstracts.
High-Priority Self-Verification Checklist
Before building your research plan around these materials, you must personally verify these specific vulnerabilities:
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Parish Boundary Overlaps: Check if your target family lived near the borders of Lanark, Russell, or Grenville counties. Early families often crossed county lines to attend the nearest Catholic mission, meaning their records might sit in a neighboring county’s parish book.
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1851 Census Deficiencies: Verify if your specific township’s agricultural pages survived intact for 1851. While the nominal pages are largely complete, some township farm schedules suffered water damage prior to microfilming.
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Early Land Registry Gaps: Check the “Copy Books of Deeds” on OnLand for unrecorded private sales. Many early Irish Catholic settlers traded land informally within the community for years before paying the fee to officially register the deed with the county.
On 14 June, MyHeritage updated the index links to its OldNews collection.
This will be of interest on the off chance you have someone in your family tree who worked in Eastern, North Eastern, Scottish, Southern, Western and London Midland regions of British Railways from the late 1940s through to the early 1960s?
On Saturday at 9 AM, BIFHSGO’s Annual General Meeting will be held for members. On the agenda are reports, elections to the Board of Directors for President, Vice President, Treasurer, Communications and Membership, and presentation of awards.