MC
Mary Chambers — 1940 US Census Record
Model Tree available1940 United States Federal Census · Russell-County, Alabama
Our Model Tree links this Mary Chambers across the 1920, 1930 and 1940 US Censuses in Russell-County, Alabama (XGBoost, ~Confirmed), with identified parents J & Berry — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Russell-County, Alabama |
| Surname | Chambers |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Phenix |
| 1935 Residence (County) | Russell |
| Additional Details | |
| Highest Grade | No 0 |
| 1935 Residence | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Beat 1 |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Chambers | Daughter | — | 23 | ~1917 |
| J Chambers | Head | — | 65 | ~1875 |
| Floyd Chambers | Son | — | 21 | ~1919 |
| Berry Chambers | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Russell, Alabama
Other, age 1
Russell, Alabama · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | Mary |
| Relationship to Head | G Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Russell, Alabama
Daughter, age 12
Russell, Alabama · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Russell-County, Alabama
Daughter, age 23
Russell-County, Alabama · implied b. ~1917 — 4 household members
| Surname | Chambers |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Phenix |
| 1935 Residence (County) | Russell |
| Highest Grade | No 0 |
| 1935 Residence | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Chambers across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Chambers (~0.92 confidence) and mother Berry Chambers (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Chambers
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Berry Chambers
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Chambers
Daughter · 1940 · age 23 · b. ~1917 · Alabama
★ You are viewing this record
Sibling
Floyd Chambers
Sibling · 1940 · age 21
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 — Russell-County, Alabama
Open full size
1940 US Federal Census — Russell-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00077-00483)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ellie Wilson | 67 | Head | — | Alabama |
| 42 | Blanch Wilson | 65 | Sister | — | Alabama |
| 43 | Edd Wilson | 65 | Head | Farmer | Alabama |
| 44 | Lula(X) Wilson | 50 | Wife | — | Alabama |
| 45 | Area Wilson | 53 | Head | Farmer | Alabama |
| 46 | Robetta Wilson | 40 | Wife | — | Alabama |
| 47 | J. C. Wilson | 17 | Son | Laborer | Alabama |
| 48 | William Wilson | 12 | Son | — | Alabama |
| 49 | James Wilson | 10 | Son | — | Alabama |
| 50 | Myrtis Wilson | 3 | Daughter | — | Alabama |
| 51 | Tom Wilson | 30 | Head | Laborer | Alabama |
| 52 | Eunice(X) Wilson | 25 | Wife | — | Alabama |
| 53 | Martha Wilson | 4 | Daughter | — | Alabama |
| 54 | Ruth Wilson | 2 | Daughter | — | Alabama |
| 55 | Robert May Wilson | 2 | Daughter | — | Alabama |
| 56 | Jack Jones | 27 | Head | Laborer | Alabama |
| 57 | Lessie Jones | 21 | Wife | — | Alabama |
| 58 | W. C. Plunder | 21 | Head | Laborer | Alabama |
| 59 | Mattie Plunder | 17 | Wife | — | Alabama |
| 60 | J. B. (X) Chambers | 65 | Head | Farmer | Alabama |
| 61 | Berry Chambers | 52 | Wife | — | Alabama |
| 62 | Mary Chambers THIS PERSON | 23 | Daughter | — | Alabama |
| 63 | Floyd Chambers | 21 | Son | Laborer | Alabama |
| 64 | Jack Davis | 55 | Head | Farmer | Alabama |
| 65 | Florrie Davis | 55 | Wife | Laborer | Alabama |
| 66 | Jessie Davis | 28 | Daughter | Laborer | Alabama |
| 67 | Ruther Davis | 27 | Son | Laborer | Alabama |
| 68 | Fannie Davis | 24 | Daughter | Laborer | Alabama |
| 69 | Teresa Davis | 22 | Daughter | Laborer | Alabama |
| 70 | Celia Davis | 20 | Daughter | Laborer | Alabama |
| 71 | Thomas J. Davis | 58 | Head | Farmer | Alabama |
| 72 | Roddie Davis | 52 | Wife | — | Alabama |
| 73 | Ellen(X) Davis | 30 | Daughter | Laborer | Alabama |
| 74 | Pearl Davis | 24 | Daughter | Laborer | Alabama |
| 75 | Thomas Jr. Davis | 24 | Son | Laborer | Alabama |
| 76 | Renon Davis | 19 | Son | Laborer | Alabama |
| 77 | Lonie Davis | 16 | Daughter | — | Alabama |
| 78 | Mattie Davis | 14 | Son | — | Alabama |
| 79 | John Davis | 12 | Son | — | Alabama |
| 80 | Ella Davis | 50 | Sister | — | Alabama |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 2 parents
~0.92
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)