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John Blair — 1940 US Census Record
Model Tree available1940 United States Federal Census · Elbert-County, Georgia
Our Model Tree links this John Blair across the 1920, 1930 and 1940 US Censuses in Elbert-County, Georgia (XGBoost, ~Confirmed), with identified parents Emma & Ed — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Georgia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Elbert-County, Georgia |
| Surname | Blair |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Elbert |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Georgia |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Occupation | Laborer |
| Township / Ward | Centerville 315 |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Ruby Blair | Daughter | — | 22 | ~1918 |
| Ernest Blair | Head | — | 34 | ~1906 |
| John Blair | Son | — | 22 | ~1918 |
| Robert Blair | Son | — | 19 | ~1921 |
| Sara Blair | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Elbert, Georgia
Son, age 1
Elbert, Georgia · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | John Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Georgia |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1930
Elbert, Georgia
Son, age 12
Elbert, Georgia · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Georgia |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Elbert-County, Georgia
Son, age 22
Elbert-County, Georgia · implied b. ~1918 — 5 household members
| Surname | Blair |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Elbert |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Georgia |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 John Blair across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Emma Blair (~0.92 confidence) and father Ed Blair (~0.92 confidence) and mother Louisa Blair (~0.92 confidence) and mother Sara Blair (~0.92 confidence) and father Ernest Blair (~0.60 confidence) and father Ernest Blair (~0.60 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.81
Mother
Emma Blair
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Ed Blair
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Louisa Blair
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Sara Blair
b. ~1905
Source mother
● Household
· direct · ~0.92
Father
Ernest Blair
b. ~1906
Source father
● Household
· direct · ~0.6
Father
Ernest Blair
b. ~1909
Source father
● Household
· direct · ~0.6
This person
Anchor record
John Blair
Son · 1940 · age 22 · b. ~1918 · Georgia
★ You are viewing this record
Sibling
Robert Blair
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Blair
Sibling · 1940 · age 22
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 — Elbert-County, Georgia
Open full size
1940 US Federal Census — Elbert-County, Georgia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00669-00538)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Tom D. Minter | 28 | Head | Tenant | Georgia |
| 42 | Lottie Minter | 24 | Wife | Laborer | Georgia |
| 43 | W. J. Minter | 7 | Son | — | Georgia |
| 44 | Marjorie Minter | 4 | Daughter | — | Georgia |
| 45 | Isaac Minter | 15 | Nephew | — | Georgia |
| 46 | Elliot Rucker | 22 | Lodger | Laborer | Georgia |
| 47 | William Allen | 22 | Lodger | Laborer | Georgia |
| 48 | Icie D. Dickerson | 48 | Head | Owner | Georgia |
| 49 | Winona Dickerson | 18 | Daughter | Rewinder | Georgia |
| 50 | Janice Dickerson | 15 | Daughter | — | Georgia |
| 51 | Horace Dickerson | 10 | Son | — | Georgia |
| 52 | Paul Dickerson | 7 | Son | — | Georgia |
| 53 | Sara Joe Fleming | 58 | Head | Operator | Georgia |
| 54 | J. Cleon Fleming | 48 | Wife | — | Georgia |
| 55 | Geo. Milton Fleming | 17 | Son | Attendant | Georgia |
| 56 | Medora Higginbotham | 83 | Head | — | Georgia |
| 57 | Milton S. Higginbotham | 45 | Son | Operator | Georgia |
| 58 | Bessie Higginbotham | 40 | Wife | — | Georgia |
| 59 | Gene Higginbotham | 8 | Grandson | — | Georgia |
| 60 | Kathryn Heard | 67 | Servant | Servant | Georgia |
| 61 | Ben D. Hughes | 52 | Head | Tenant | Georgia |
| 62 | Maggie Hughes | 46 | Wife | Laborer | Georgia |
| 63 | Mrs. Willie D. Maxwell | 69 | Head | — | Georgia |
| 64 | Jeffie Maxwell | 63 | Brother | — | Georgia |
| 65 | Juddye Tansley | 62 | Brother | Laborer | Georgia |
| 66 | Loyd Jones | 45 | Head | Tenant | Georgia |
| 67 | Naomi D. Jones | 32 | Wife | Laborer | Georgia |
| 68 | Lizzie Ruth Jones | 12 | Daughter | — | Georgia |
| 69 | Jamie Lou Jones | 2 | Daughter | — | Georgia |
| 70 | Ernest A. S. Blair | 34 | Head | Tenant | South Carolina |
| 71 | Sara E. Blair | 35 | Wife | Rewinding | Georgia |
| 72 | Ruby Blair | 22 | Daughter | — | Georgia |
| 73 | John Blair THIS PERSON | 22 | Son | Laborer | Georgia |
| 74 | Robert Blair | 19 | Son | Laborer | Georgia |
| 75 | Parker Adams | 52 | Head | Owner | Georgia |
| 76 | Mary Lou Adams | 49 | Wife | — | Georgia |
| 77 | Clifford Adams | 22 | Son | — | Georgia |
| 78 | Charles Adams | 17 | Son | — | Georgia |
| 79 | Clyde Adams | 15 | Son | — | Georgia |
| 80 | Jamie Lee Adams | 10 | Daughter | — | Georgia |
Pedigree Summary
John + 2 siblings
Gen 1 · 6 parents
~0.81
Max depth 4 (1900–1950 window)
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)