MJ
Mary Jefferson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Yazoo-County, Mississippi
Our Model Tree links this Mary Jefferson across the 1920, 1930 and 1940 US Censuses in Yazoo-County, Mississippi (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 5-person household.
Age 60
b. ~1880
Female
Spouse
Born: Mississippi
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Yazoo-County, Mississippi |
| Surname | Jefferson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 4 |
| 1935 Residence (County) | Yazoo |
| Additional Details | |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | NP |
| Hours Worked | 10 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same house |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | Laborer |
| Township / Ward | Beat 4 |
| Est. Birth Year | ~1880 |
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 |
|---|---|---|---|---|
| Walker Garrett | Other | — | 19 | ~1921 |
| Mary Jefferson | Spouse | — | 60 | ~1880 |
| Philip Jefferson | Head | — | 26 | ~1914 |
| Bonny Jefferson | Other | — | 16 | ~1924 |
| Christine Jefferson | Daughter | — | 11 | ~1929 |
Census Appearances
1920
Yazoo, Mississippi
Spouse, age 35
Yazoo, Mississippi · implied b. ~1885 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jefferson |
| Given Name | Mary Eliza |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1930
Yazoo, Mississippi
Spouse, age 48
Yazoo, Mississippi · implied b. ~1882 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jefferson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Mississippi |
| Age at First Marriage | 18 |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Can Read/Write | No |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Yazoo-County, Mississippi
Spouse, age 60
Yazoo-County, Mississippi · implied b. ~1880 — 5 household members
| Surname | Jefferson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 4 |
| 1935 Residence (County) | Yazoo |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | NP |
| Hours Worked | 10 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same house |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Jefferson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Jefferson
Spouse · 1940 · age 60 · b. ~1880 · Mississippi
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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 — Yazoo-County, Mississippi
Open full size
1940 US Federal Census — Yazoo-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02080-00900)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Willie, Jr. Williams | 14 | Son | Laborer | Mississippi |
| 2 | Homer Lee Williams | 10 | Son | — | Mississippi |
| 3 | Edner Williams | 8 | Son | — | Mississippi |
| 4 | Philip Williams | 2 | Son | — | Mississippi |
| 5 | Maggie Williams | 12 | Daughter | — | Mississippi |
| 6 | Martin Washington | 36 | Head | Farmer | Mississippi |
| 7 | Mary Washington | 36 | Wife | Laborer | Mississippi |
| 8 | Willie Whitehead | 18 | Step-son | Laborer | Mississippi |
| 9 | Essie Whitehead | 17 | Step-son | Laborer | Mississippi |
| 10 | Annie Washington | 13 | Daughter | — | Mississippi |
| 11 | Lucy Washington | 84 | Mother | — | Mississippi |
| 12 | Herbert Jones | 27 | Head | Farmer | Mississippi |
| 13 | Carrie Jones | 40 | Wife | Laborer | Mississippi |
| 14 | Gentle Jones | 17 | Son | Farmer | Mississippi |
| 15 | Mican Jones | 14 | Daughter | — | Mississippi |
| 16 | Joe Jones | 5 | Son | — | Mississippi |
| 17 | Myrtle Washington | 18 | Daughter | Laborer | Mississippi |
| 18 | Carrie Mae Washington | 2 | Granddaughter | — | Mississippi |
| 19 | Gertrude Johnston | 30 | Head | Farmer | Mississippi |
| 20 | Ruth Johnston | 16 | Daughter | — | Mississippi |
| 21 | Anne Johnston | 13 | Daughter | — | Mississippi |
| 22 | Justus Johnston | 12 | Son | — | Mississippi |
| 23 | Willie Johnston | 1 | Son | — | Mississippi |
| 24 | Lewis Williams | 52 | Head | Farmer | Mississippi |
| 25 | Susanna Williams | 48 | Wife | Laborer | Mississippi |
| 26 | J. W. Williams | 7 | Grandson | — | Mississippi |
| 27 | J. T. Henderson | 36 | Head | Farmer | Mississippi |
| 28 | Jessie Henderson | 40 | Wife | Laborer | Mississippi |
| 29 | Margie Henderson | 31 | Daughter | Laborer | Mississippi |
| 30 | Joe Henderson | 3 | Grandson | — | Mississippi |
| 31 | Nathaniel Henderson | 1 | Grandson | — | Mississippi |
| 32 | Philip Jefferson | 26 | Head | Farmer | Mississippi |
| 33 | Mary Jefferson THIS PERSON | 60 | Wife | Laborer | Mississippi |
| 34 | Bonny Mae Jefferson | 16 | Granddaughter | — | Mississippi |
| 35 | Christine Jefferson | 11 | Daughter | — | Mississippi |
| 36 | Walker Garrett | 19 | Grandson | Laborer | Mississippi |
| 37 | James Jefferson | 46 | Head | Farmer | Mississippi |
| 38 | Essie Jefferson | 28 | Wife | Laborer | Mississippi |
| 39 | Thelma Jefferson | 13 | Daughter | — | Mississippi |
| 40 | Lettie Jefferson | 8 | Daughter | — | Mississippi |
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)