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Mary Blair — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Douglas-County, Georgia
Our Model Tree links this Mary Blair across the 1910, 1920, 1930 and 1940 US Censuses in Douglas-County, Georgia (XGBoost, ~Confirmed) — first a spouse (b.~1873), then head of a 5-person household.
Age 67
b. ~1873
Female
Spouse
Born: Georgia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Georgia |
| Surname | Blair |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Lithia Springs Salt Springs |
| 1935 Residence (County) | Douglas |
| Additional Details | |
| Occupation | Housewife |
| Industry | Home |
| Class of Worker | NP |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Occupation | Housewife |
| Township / Ward | Lithia Springs Salt Springs |
| Est. Birth Year | ~1873 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Blair | Daughter | — | 38 | ~1902 |
| Mary Murray | Daughter | — | 30 | ~1910 |
| Thomas Blair | Head | — | 77 | ~1863 |
| Darrel Murray | Other | — | 14 | ~1926 |
| Mary Blair | Spouse | — | 67 | ~1873 |
Census Appearances
1910
Douglas, Georgia
Spouse, age 37
Douglas, Georgia · implied b. ~1873 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Georgia |
| Years Married | 21 |
| Children Born | 8 |
| Children Living | 6 |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1920
Douglas, Georgia
Spouse, age 48
Douglas, Georgia · implied b. ~1872 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1930
Douglas, Georgia
Spouse, age 57
Douglas, Georgia · implied b. ~1873 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Douglas-County, Georgia
Spouse, age 67
Douglas-County, Georgia · implied b. ~1873 — 5 household members
| Surname | Blair |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Lithia Springs Salt Springs |
| 1935 Residence (County) | Douglas |
| Occupation | Housewife |
| Industry | Home |
| Class of Worker | NP |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 Mary Blair across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Blair
Spouse · 1940 · age 67 · b. ~1873 · Georgia
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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 — Douglas-County, Georgia
Open full size
1940 US Federal Census — Douglas-County, Georgia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00667-01066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James L Strand | 24 | Head | Tile Helper | Tennessee |
| 2 | Carmine Strand | 22 | Wife | Housewife | Tennessee |
| 3 | Midget Ella Strand | 69 | Mother-in-law | Housework | Tennessee |
| 4 | Allen Cochran | 30 | Head | Farmer | Georgia |
| 5 | Lava B Cochran | 29 | Wife | Housewife | Georgia |
| 6 | Myrtle D Cochran | 7 | Daughter | — | Georgia |
| 7 | Mary E Cochran | 1 | Daughter | — | Georgia |
| 8 | Oscar Crane | 44 | Head | Farmer | Georgia |
| 9 | Bessie Crane | 36 | Wife | Housewife | Georgia |
| 10 | Ralph Crane | 15 | Son | — | Georgia |
| 11 | Marie Crane | 12 | Daughter | — | Georgia |
| 12 | Charlie Crane | 9 | Son | — | Georgia |
| 13 | Kenneth Crane | 5 | Son | — | Georgia |
| 14 | Merledean Crane | 3 | Daughter | — | Georgia |
| 15 | Oscar Jr Crane | 2 | Son | — | Georgia |
| 16 | Hardy H Richardson | 66 | Head | Farmer | Georgia |
| 17 | Lillie Richardson | 64 | Wife | Housewife | Georgia |
| 18 | Henry Richardson | 41 | Son | Farmer | Georgia |
| 19 | Luckie Richardson | 36 | Son | Farmer | Georgia |
| 20 | John Harris | 73 | Head | Laborer | Georgia |
| 21 | Bernard Kentrell | 22 | Roomer | Laborer | Georgia |
| 22 | Charles B Dickinson | 45 | Head | Laborer | Georgia |
| 23 | Annie E B Dickinson | 43 | Wife | Housewife | Georgia |
| 24 | Charles Jr Dickinson | 9 | Son | — | Georgia |
| 25 | David T Lipsey | 52 | Head | Farmer | Georgia |
| 26 | Mary J Lipsey | 49 | Wife | Housewife | Alabama |
| 27 | Thomas J Blair | 77 | Head | Farmer | Georgia |
| 28 | Mary L Blair THIS PERSON | 67 | Wife | Housewife | Georgia |
| 29 | Helen Blair | 38 | Daughter | Stenographer | Georgia |
| 30 | Mary Murray | 30 | Daughter | Clerical | Georgia |
| 31 | Darrel Murray | 14 | Grandson | — | Georgia |
| 32 | Eugene Blair | 36 | Head | Laborer | Georgia |
| 33 | Helen B Blair | 32 | Wife | Housewife | Florida |
| 34 | Thomas E Blair | 9 | Son | — | Georgia |
| 35 | Barbara J Blair | 6 | Daughter | — | Georgia |
| 36 | Donald Blair | 3 | Son | — | Georgia |
| 37 | Charlie Hinkle | 42 | Head | Farmer | Georgia |
| 38 | Vesta Hinkle | 39 | Wife | Housewife | Georgia |
| 39 | Gladys Hinkle | 21 | Daughter | Clerical | Georgia |
| 40 | Ben J Turner | 64 | Head | Farmer | Georgia |
Related Census Records
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)