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James Blair — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sumter-County, South Carolina
Our Model Tree links this James Blair across the 1930 and 1940 US Censuses in Sumter-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumter-County, South Carolina |
| Surname | Blair |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Sumter |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Privateer Township |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Henry Blair | Son | — | 10 | ~1930 |
| Katherine Blair | Daughter | — | 8 | ~1932 |
| Martha Blair | Daughter | — | 5 | ~1935 |
| Jallie Blair | Daughter | — | 4 | ~1936 |
| Oda Blair | Daughter | — | 1 | ~1939 |
| James Blair | Son | — | 11 | ~1929 |
| Annie Blair | Spouse | — | 36 | ~1904 |
| Charles Blair | Son | — | 7 | ~1933 |
| Elizabeth Blair | Daughter | — | 13 | ~1927 |
| Agnes Blair | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Sumter, South …
Son, age 2
Sumter, South Carolina · implied b. ~1928 — 16 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Sumter-County, South …
Son, age 11
Sumter-County, South Carolina · implied b. ~1929 — 10 household members
| Surname | Blair |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Sumter |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Blair
Son · 1940 · age 11 · b. ~1929 · South Carolina
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Sibling
Elizabeth Blair
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Blair
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Blair
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Blair
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Blair
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Blair
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oda Blair
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jallie Blair
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sumter-County, South Carolina
Open full size
1940 US Federal Census — Sumter-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03841-00314)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie Blair | 36 | Wife | Farm Laborer | South Carolina |
| 2 | Elizabeth Blair | 13 | daughter | — | South Carolina |
| 3 | James Blair THIS PERSON | 11 | son | — | South Carolina |
| 4 | Henry Blair | 10 | son | — | South Carolina |
| 5 | Katherine Blair | 8 | daughter | — | South Carolina |
| 6 | Charles Jr Blair | 7 | son | — | South Carolina |
| 7 | Martha Blair | 5 | daughter | — | South Carolina |
| 8 | Jallie Mae Blair | 4 | daughter | — | South Carolina |
| 9 | Agnes Blair | 2 | daughter | — | South Carolina |
| 10 | Oda Blair | 1 | daughter | — | South Carolina |
| 11 | Joseph Benjamin Mcleod | 53 | Head | Carpenter | South Carolina |
| 12 | Doffie Mcleod | 38 | Wife | — | South Carolina |
| 13 | Albert Mcleod | 16 | son | Farm Laborer | South Carolina |
| 14 | Albert Mcleod | 15 | son | Farm Laborer | South Carolina |
| 15 | Doris Mcleod | 14 | daughter | — | South Carolina |
| 16 | Christine Mcleod | 13 | daughter | — | South Carolina |
| 17 | Kathaleen Mcleod | 9 | daughter | — | South Carolina |
| 18 | Audrey Mcleod | 4 | daughter | — | South Carolina |
| 19 | Clifton Hudson | 35 | Head | Farm Laborer | South Carolina |
| 20 | Katie Hudson | 33 | Wife | — | South Carolina |
| 21 | Rollo Barkley | 28 | Head | Carpenter | South Carolina |
| 22 | Sadie Barkley | 30 | Wife | — | South Carolina |
| 23 | Reileigh Barkley | 3 | son | — | South Carolina |
| 24 | Cecil Barkley | 2 | son | — | South Carolina |
| 25 | Martin Barkley | 1 | son | — | South Carolina |
| 26 | Robert Farmer | 30 | Head | Farm Laborer | South Carolina |
| 27 | Plaester Farmer | 30 | Wife | Farm Laborer | South Carolina |
| 28 | Neal Brown | 40 | Head | Farmer | South Carolina |
| 29 | Hennie Brown | 35 | Wife | Farm Laborer | South Carolina |
| 30 | Lottie Brown | 13 | daughter | — | South Carolina |
| 31 | Erline Brown | 10 | daughter | — | South Carolina |
| 32 | Johnnie Brown | 8 | son | — | South Carolina |
| 33 | James Brown | 3 | son | — | South Carolina |
| 34 | Lamplay Galloway | 40 | Head | Farmer | South Carolina |
| 35 | Alice Galloway | 50 | Wife | — | South Carolina |
| 36 | Willie Turner | 41 | Head | Deep Well Project | South Carolina |
| 37 | Margie Turner | 31 | Wife | — | South Carolina |
| 38 | Elizabeth Turner | 13 | daughter | — | South Carolina |
| 39 | Marvin Turner | 11 | son | — | South Carolina |
| 40 | Eleazer Turner | 10 | son | — | South Carolina |
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)