DF
Dorothy Foster — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Dorothy Foster across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Foster |
| Given Name | Dorothy L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield City |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | Music Teacher |
| Industry | Private school |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 720 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | Springfield City |
| Est. Birth Year | ~1914 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Louise Foster | Spouse | — | 39 | ~1901 |
| Bess Foster | Daughter | — | 5 | ~1935 |
| Dorothy Foster | Daughter | — | 26 | ~1914 |
| Jean Foster | Daughter | — | 13 | ~1927 |
| John Foster | Head | — | 46 | ~1894 |
Census Appearances
1920
Sangamon, Illinois
Daughter, age 6
Sangamon, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Sangamon, Illinois
Daughter, age 16
Sangamon, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Dorothy L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Sangamon-County, Illinois
Daughter, age 26
Sangamon-County, Illinois · implied b. ~1914 — 5 household members
| Surname | Foster |
| Given Name | Dorothy L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield City |
| 1935 Residence (County) | Sangamon |
| Occupation | Music Teacher |
| Industry | Private school |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 720 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Dorothy Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Foster (~0.92 confidence) and father John Foster (~0.92 confidence) and father John Foster (~0.92 confidence) and mother Louise Foster (~0.92 confidence) and mother Louise Foster (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Foster
b. ~1882
Source father
● Household
· direct · ~0.92
Father
John Foster
b. ~1882
Source father
● Household
· direct · ~0.92
Father
John Foster
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Louise Foster
b. ~1901
Source mother
● Household
· direct · ~0.92
Mother
Louise Foster
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Foster
Daughter · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Bess Foster
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Foster
Sibling · 1940 · age 13
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 — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00885-00417)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John R Foster | 46 | Head | Metal Worker | Illinois |
| 2 | Louise E Foster | 39 | Wife | Music Teacher | Illinois |
| 3 | Dorothy L Foster THIS PERSON | 26 | Daughter | Music Teacher | Illinois |
| 4 | Jean E Foster | 13 | Daughter | — | Illinois |
| 5 | Bess Anna L Foster | 5 | Daughter | — | Illinois |
| 6 | Thomas Gamin | 47 | Head | Electrician | Illinois |
| 7 | Ethel R Gamin | 42 | Wife | Beauty Operator | Illinois |
| 8 | Eileen Gamin | 23 | Daughter | Stenographer | Illinois |
| 9 | Robert L Logan | 19 | Son | — | Illinois |
| 10 | Betty Jane Logan | 14 | Daughter | — | Illinois |
| 11 | John Melvin | 45 | Head | Steam Fitter | Ohio |
| 12 | Catherine Melvin | 34 | Wife | — | Illinois |
| 13 | Jean Ann Melvin | 11 | Daughter | — | Illinois |
| 14 | Mary Catherine Melvin | 9 | Daughter | — | Illinois |
| 15 | John W Melvin | 5 | Son | — | Illinois |
| 16 | Space Reserved In Error | None | — | — | — |
| 17 | Space Reserved In Error | None | — | — | — |
| 18 | Edgar L Minters | 55 | Head | Dist. Supervisor | Illinois |
| 19 | Grace R Minters | 49 | Wife | — | Illinois |
| 20 | Martin J Kelley | 47 | Head | Inspector Fire | Illinois |
| 21 | Julia C Kelley | 46 | Wife | — | Illinois |
| 22 | Eileen S Kelley | 17 | Daughter | — | Illinois |
| 23 | Marcella J Kelley | 15 | Daughter | — | Illinois |
| 24 | Walter L Mccauley | 49 | Head | Salesman | Arkansas |
| 25 | Florence Mccauley | 41 | Wife | — | Oklahoma |
| 26 | Walter Jr Mccauley | 17 | Son | — | Oklahoma |
| 27 | Robert W Mccauley | 13 | Son | — | Missouri |
| 28 | George B Weakley | 65 | Head | Dentist | Penna |
| 29 | Lillian Weakley | 59 | Wife | — | Penna |
| 30 | Robert Kutzler | 44 | Head | Book Keeper | Illinois |
| 31 | Reba Kutzler | 41 | Wife | — | Illinois |
| 32 | Susan Kutzler | 7 | Daughter | — | Illinois |
| 33 | Anton Blau | 54 | Head | Jailer | Illinois |
| 34 | Ada Blau | 51 | Wife | — | Illinois |
| 35 | Mary V Blau | 23 | Daughter | School Teacher | Illinois |
| 36 | Margaret Finley | 69 | Head | — | England |
| 37 | Jessie Finley | 34 | Daughter | Stenographer | Illinois |
| 38 | John O'Shea | 70 | Head | Building Contractor | Illinois |
| 39 | Annie O'Shea | 67 | Wife | — | Illinois |
Pedigree Summary
Dorothy + 2 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)