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Barbara Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mcdonough-County, Illinois
Our Model Tree links this Barbara Davis across the 1920, 1930 and 1940 US Censuses in Mcdonough-County, Illinois (XGBoost, ~Confirmed), with identified parents Margaret & Ray — first a daughter (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mcdonough-County, Illinois |
| Surname | Davis |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Blandinsville Village |
| 1935 Residence (County) | McDonough |
| Additional Details | |
| Occupation | Secretary |
| Industry | State Teachers College |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 360 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Secretary |
| Township / Ward | Blandinsville Village |
| Est. Birth Year | ~1920 |
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 Barbara | Age | Birth yr |
|---|---|---|---|---|
| Ray Davis | Head | — | 43 | ~1897 |
| Barbara Davis | Daughter | — | 20 | ~1920 |
| Margaret Davis | Spouse | — | 48 | ~1892 |
| M Davis | Daughter | — | 12 | ~1928 |
Census Appearances
1920
Mcdonough, Illinois
Daughter, age
Mcdonough, Illinois · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Barbara A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Mcdonough, Illinois
Daughter, age 10
Mcdonough, Illinois · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Barbara Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mcdonough-County, Illinois
Daughter, age 20
Mcdonough-County, Illinois · implied b. ~1920 — 4 household members
| Surname | Davis |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Blandinsville Village |
| 1935 Residence (County) | McDonough |
| Occupation | Secretary |
| Industry | State Teachers College |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 360 |
| 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 Barbara Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Margaret Davis (~0.92 confidence) and father Ray Davis (~0.92 confidence) and mother Margaret Davis (~0.92 confidence) and mother Margaret Davis (~0.92 confidence) and father Ray Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Margaret Davis
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Ray Davis
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Margaret Davis
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Margaret Davis
b. ~1897
Source mother
● Household
· direct · ~0.92
Father
Ray Davis
b. ~1897
Source father
● Household
· direct · ~0.92
This person
Anchor record
Barbara Davis
Daughter · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
M Davis
Sibling · 1940 · age 12
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 — Mcdonough-County, Illinois
Open full size
1940 US Federal Census — Mcdonough-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00839-00029)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sarah Myers | 72 | Head | — | Illinois |
| 2 | William E. Powell | 74 | Head | — | Illinois |
| 3 | Sulina Powell | 54 | Wife | — | Illinois |
| 4 | Blake Jones | 57 | Head | Proprietor | Illinois |
| 5 | Stella Jones | 59 | Wife | — | Illinois |
| 6 | Hollis Jones | 30 | Daughter | — | Illinois |
| 7 | Ray L. Davis | 43 | Head | Dealer | Illinois |
| 8 | Margaret Davis | 48 | Wife | — | Illinois |
| 9 | Barbara Davis THIS PERSON | 20 | Daughter | Secretary | Illinois |
| 10 | M. Carolyn Davis | 12 | Daughter | — | Illinois |
| 11 | Henry Mckee | 27 | Head | Practicing Physician | Illinois |
| 12 | Catherine Zips | 45 | Housekeeper | House Keeper | Illinois |
| 13 | Frank H. Celvies | 71 | Head | Proprietor | Iowa |
| 14 | Myra Celvies | 64 | Wife | — | Illinois |
| 15 | Allen Lyons | 28 | Head | Pharmacist & Proprietor | Illinois |
| 16 | Frances Lyons | 25 | Wife | — | Illinois |
| 17 | Richard Lyons | 10 | Son | — | Missouri |
| 18 | Don David Lyons | 1 | Son | — | Illinois |
| 19 | Quinton Webb | 70 | Head | Proprietor | Illinois |
| 20 | Nellie Webb | 72 | Wife | — | Illinois |
| 21 | Carl H. Oakman | 73 | Head | Farmer | Illinois |
| 22 | Mabel Squire | 51 | Housekeeper | House Keeper | Illinois |
| 23 | Lewis Yoder | 74 | Head | — | Illinois |
| 24 | Lelia Yoder | 69 | Wife | — | Illinois |
| 25 | Lewis Smith | 21 | Grandson | Manager | Illinois |
| 26 | Arthur Smith | 19 | Grandson | Waitress | Illinois |
| 27 | Raleigh Smith | 17 | Grandson | Farm Laborer | Illinois |
| 28 | Oris Myers | 46 | Head | Dealer | Illinois |
| 29 | Bessie Myers | 40 | Wife | — | Illinois |
| 30 | Russell Myers | 19 | Son | — | Illinois |
| 31 | Corrine Myers | 13 | Daughter | — | Illinois |
| 32 | Florence Grigsby | 69 | Head | — | Illinois |
| 33 | Frank P. Johnston | 69 | Head | — | Sweden |
| 34 | Sophia Johnston | 87 | Wife | — | Sweden |
| 35 | Edward Myers | 62 | Head | Mason Helper | Missouri |
| 36 | Eliza Myers | 56 | Wife | — | Missouri |
| 37 | Albert Keck | 36 | Head | Salesman | Illinois |
| 38 | Thelma Keck | 32 | Wife | — | Nebraska |
| 39 | Henry Foster | 34 | Head | Farm Hand | Illinois |
| 40 | Mary Foster | 25 | Wife | — | Illinois |
Pedigree Summary
Barbara + 1 sibling
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)