MF
Mary Foster — 1940 US Census Record
Model Tree available1940 United States Federal Census · East-Baton-Rouge-County, Louisiana
Our Model Tree links this Mary Foster across the 1920, 1930 and 1940 US Censuses in East-Baton-Rouge-County, Louisiana (XGBoost, ~Confirmed), with identified parents Adolph & John — first a daughter (b.~1918), then head of a 12-person household.
Age 22
b. ~1918
Female
Daughter
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | East-Baton-Rouge-County, Louisiana |
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Baton Rouge City |
| 1935 Residence (County) | East Baton Rouge |
| Additional Details | |
| Occupation | Housework |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 192 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Housework |
| Township / Ward | Baton Rouge City |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Foster | Daughter | — | 10 | ~1930 |
| Alice Foster | Daughter | — | 6 | ~1934 |
| Mary Foster | Daughter | — | 22 | ~1918 |
| Freddy Foster | Daughter | — | 7 | ~1933 |
| Bernadine Foster | Daughter | — | 1 | ~1939 |
| Dorothy Foster | Daughter | — | 14 | ~1926 |
| Christine Foster | Daughter | — | 18 | ~1922 |
| Harriett Young | Head | — | 37 | ~1903 |
| Mervin Foster | Other | — | 1 | ~1939 |
| Wilber Foster | Son | — | 15 | ~1925 |
| Howard Foster | Son | — | 9 | ~1931 |
| Herman Foster | Son | — | 20 | ~1920 |
Census Appearances
1920
East Baton …
Daughter, age
East Baton Rouge, Louisiana · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
East Baton …
Daughter, age 12
East Baton Rouge, Louisiana · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read/Write | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
East-Baton-Rouge-County, Louisiana
Daughter, age 22
East-Baton-Rouge-County, Louisiana · implied b. ~1918 — 12 household members
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Baton Rouge City |
| 1935 Residence (County) | East Baton Rouge |
| Occupation | Housework |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 192 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Adolph Foster (~0.92 confidence) and father John Foster (~0.92 confidence) and mother Frances Foster (~0.92 confidence) and mother Angeline Foster (~0.92 confidence) and mother Harriett Young (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Adolph Foster
b. ~1890
Source father
● Household
· direct · ~0.92
Father
John Foster
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Frances Foster
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Angeline Foster
b. ~1904
Source mother
● Household
· direct · ~0.92
Mother
Harriett Young
b. ~1903
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Foster
Daughter · 1940 · age 22 · b. ~1918 · Louisiana
★ You are viewing this record
Sibling
Herman Foster
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilber Foster
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Foster
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Foster
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine Foster
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christine Foster
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Foster
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Freddy Foster
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Foster
Sibling · 1940 · age 14
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 — East-Baton-Rouge-County, Louisiana
Open full size
1940 US Federal Census — East-Baton-Rouge-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01396-00584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nemiah Rice | 32 | Head | Laborer | Louisiana |
| 42 | Maggie Rice | 38 | Wife | — | Louisiana |
| 43 | Willie Rice | 14 | Son | — | Louisiana |
| 44 | Jerry Reed | 23 | Son in law | Laborer | Louisiana |
| 45 | Theodora Reed | 18 | Daughter | — | Louisiana |
| 46 | Jerry Jr Reed | 2 | Grand Son | — | Louisiana |
| 47 | Annie Reed | 1 | Grand Daughter | — | Louisiana |
| 48 | Wilbur Edwards | 44 | Head | Laborer | Louisiana |
| 49 | Elmer Edwards | 45 | Wife | Laundress | Louisiana |
| 50 | Harriett Patterson | 78 | Mother in law | — | Louisiana |
| 51 | Green Armstead | 35 | Head | Deckhand | Louisiana |
| 52 | Mary Armstead | 30 | Wife | Housework | Louisiana |
| 53 | Fannie B. Armstead | 11 | Daughter | — | Louisiana |
| 54 | Harriett Thomas | 60 | Mother in law | — | Louisiana |
| 55 | Lizzie Adams | 37 | Sister in law | Housework | Louisiana |
| 56 | Marion Adams | 5 | Niece | — | Louisiana |
| 57 | Lawrence Adams | 32 | Brother in law | Deckhand | Louisiana |
| 58 | Joe Howard | 75 | Head | Laborer | North Carolina |
| 59 | Lillian Howard | 50 | Wife | Laundress | Louisiana |
| 60 | James Jones | 19 | Grand son | Laborer | Louisiana |
| 61 | Mollie Poole | 76 | Mother in law | — | Louisiana |
| 62 | Nancy Thomas | 87 | Head | — | Louisiana |
| 63 | John Thomas | 58 | Son | — | Louisiana |
| 64 | Harriett Young | 37 | Head | Housework | Louisiana |
| 65 | Mary Foster THIS PERSON | 22 | Daughter | Housework | Louisiana |
| 66 | Mervin Foster | 1 | Grand son | — | Louisiana |
| 67 | Herman Foster | 20 | Son | Truck Driver | Louisiana |
| 68 | Christine Foster | 18 | Daughter | Dish Washer | Louisiana |
| 69 | Wilber Foster | 15 | Son | Delivery Boy | Louisiana |
| 70 | Dorothy Foster | 14 | Daughter | — | Louisiana |
| 71 | Elizabeth Foster | 10 | Daughter | — | Louisiana |
| 72 | Howard Foster | 9 | Son | — | Louisiana |
| 73 | Freddy Foster | 7 | Daughter | — | Louisiana |
| 74 | Alice Foster | 6 | Daughter | — | Louisiana |
| 75 | Bernadine Foster | 1 | Daughter | — | Louisiana |
| 76 | Edgar Robinson | 29 | Head | Presser | Louisiana |
| 77 | Ethel Robinson | 27 | Wife | Maid | Louisiana |
| 78 | Mary Johnson | 69 | Aunt | — | Louisiana |
| 79 | Milton Crames | 10 | Nephew | — | Louisiana |
| 80 | Martha A Johnson | 52 | Head | Saleswoman | Louisiana |
Related Census Records
Pedigree Summary
Mary + 9 siblings
Gen 1 · 5 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)