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James Blair — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hartford-County, Connecticut
Our Model Tree links this James Blair across the 1920, 1930 and 1940 US Censuses in Hartford-County, Connecticut (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 3-person household.
Age 77
b. ~1863
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hartford-County, Connecticut |
| Surname | Blair |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Hartford |
| 1935 Residence (County) | Hartford |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Hartford |
| Est. Birth Year | ~1863 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Isabella Blair | Spouse | — | 71 | ~1869 |
| James Blair | Head | — | 77 | ~1863 |
| Allen Blair | Daughter | — | 41 | ~1899 |
Census Appearances
1920
Hartford, Connecticut
Head, age 56
Hartford, Connecticut · implied b. ~1864 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | 1897 |
| Birthplace (normalized) | scotland |
1930
Hartford, Connecticut
Head, age 67
Hartford, Connecticut · implied b. ~1863 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1901 |
| Age at First Marriage | 34 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Salesman |
| Industry | Retail Meat Market |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 10.00 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Hartford-County, Connecticut
Head, age 77
Hartford-County, Connecticut · implied b. ~1863 — 3 household members
| Surname | Blair |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Hartford |
| 1935 Residence (County) | Hartford |
| Naturalization Status | Naturalized |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links James Blair across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Blair
Head · 1940 · age 77 · b. ~1863 · Connecticut
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hartford-County, Connecticut
Open full size
1940 US Federal Census — Hartford-County, Connecticut
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00537-00670)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilmont Russell | 46 | head | Gold Beater | England |
| 2 | Ellen Russell | 52 | wife | — | England |
| 3 | William Russell | 14 | son | — | Connecticut |
| 4 | Thomas Williams | 63 | head | Case Hardening | England |
| 5 | Mabel Williams | 51 | wife | — | England |
| 6 | James Blair THIS PERSON | 77 | head | — | Scotland |
| 7 | Isabella Blair | 71 | wife | — | New Jersey |
| 8 | Allen L. Blair | 41 | daughter | Dental Hyg. | Connecticut |
| 9 | Thomas Mullins | 68 | head | Salesman | Scotland |
| 10 | Mary Mullins | 59 | wife | — | Connecticut |
| 11 | This Ends Block 10 Starting Block 11 | None | — | — | — |
| 12 | Carl Lorenzen | 50 | head | Cabinet Maker | Germany |
| 13 | Nina Lorenzen | 46 | wife | — | Germany |
| 14 | Carl Jr. Lorenzen | 15 | son | Musician | Germany |
| 15 | Ingelborg Lorenzen | 19 | daughter | Secretary | Germany |
| 16 | John Higgins | 32 | head | Truck Driver | Connecticut |
| 17 | Grace Higgins | 32 | wife | — | Connecticut |
| 18 | John Jr. Higgins | 5 | son | — | Connecticut |
| 19 | Margaret Higgins | 4 | daughter | — | Connecticut |
| 20 | Donald Higgins | 2 | son | — | Connecticut |
| 21 | Martha Higgins | 2 | daughter | — | Connecticut |
| 22 | Mary Higgins | 1 | daughter | — | Connecticut |
| 23 | Louis Katz | 40 | head | Salesman | Russia |
| 24 | Ethel Katz | 36 | wife | — | Connecticut |
| 25 | Janet Katz | 10 | daughter | — | Connecticut |
| 26 | Carol Katz | 5 | daughter | — | Connecticut |
| 27 | Frank P. Nolan | 53 | head | Treasurer | Massachusetts |
| 28 | Mary Nolan | 51 | wife | — | Connecticut |
| 29 | Alice Nolan | 24 | daughter | Beauty Opr. | New York |
| 30 | Patricia Nolan | 15 | daughter | — | Connecticut |
| 31 | Leo Lanter | 27 | head | Butcher | Connecticut |
| 32 | Grace Lanter | 24 | wife | — | Maine |
| 33 | Abie Sockut | 65 | head | Tailor | Poland |
| 34 | Mollie Sockut | 59 | wife | — | Poland |
| 35 | Yale Sockut | 36 | son | Salesman | Connecticut |
| 36 | Jules Sockut | 34 | son | Salesman | Connecticut |
| 37 | Harold Sockut | 27 | son | Mail Carrier | Connecticut |
| 38 | Rosline Sockut | 21 | daughter | Clerk | Connecticut |
| 39 | Block 20 Starts Here | None | — | — | — |
| 40 | Jens Jensen | 53 | head | Farmer | Denmark |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)