MD
Martha Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hardin-County, Illinois
Our Model Tree links this Martha Davis across the 1920, 1930 and 1940 US Censuses in Hardin-County, Illinois (XGBoost, ~Confirmed), with identified parents Mason & Marion — 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 | Hardin-County, Illinois |
| Surname | Davis |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East Monroe Prec. |
| 1935 Residence (County) | Hardin |
| Additional Details | |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | East Monroe Prec |
| 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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Martha Davis | Daughter | — | 20 | ~1920 |
| Jane Davis | Daughter | — | 14 | ~1926 |
| Marion Davis | Head | — | 57 | ~1883 |
| Raymond Davis | Son | — | 16 | ~1924 |
Census Appearances
1920
Hardin, Illinois
Daughter, age
Hardin, Illinois · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Hardin, Illinois
Daughter, age 10
Hardin, Illinois · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Hardin-County, Illinois
Daughter, age 20
Hardin-County, Illinois · implied b. ~1920 — 4 household members
| Surname | Davis |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East Monroe Prec. |
| 1935 Residence (County) | Hardin |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 Martha Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Mason Davis (~0.92 confidence) and father Marion Davis (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Mason Davis
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Marion Davis
b. ~1883
Source father
● Household
· direct · ~0.92
This person
Anchor record
Martha Davis
Daughter · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Raymond Davis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Davis
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 — Hardin-County, Illinois
Open full size
1940 US Federal Census — Hardin-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00810-00870)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Christal Brummer | 31 | Wife | — | Illinois |
| 42 | Pauline Brummer | 12 | Daughter | — | Illinois |
| 43 | Maxine Brummer | 9 | Daughter | — | Illinois |
| 44 | Imogene Brummer | 5 | Daughter | — | Illinois |
| 45 | Wayne Pylles | 41 | Head | — | Illinois |
| 46 | Callie Pylles | 38 | Wife | — | Illinois |
| 47 | Owen Pylles | 17 | Son | — | Illinois |
| 48 | Randall Pylles | 12 | Son | — | Illinois |
| 49 | Ralph Pylles | 8 | Son | — | Illinois |
| 50 | Wilda Pylles | 4 | Daughter | — | Illinois |
| 51 | Charles Patterson | 34 | Head | Miner | Illinois |
| 52 | May Patterson | 34 | Wife | — | Illinois |
| 53 | Thurlow Patterson | 15 | Son | — | Illinois |
| 54 | Lorena Patterson | 14 | Daughter | — | Illinois |
| 55 | Wendell Patterson | 11 | Son | — | Illinois |
| 56 | Lillian R. Patterson | 7 | Daughter | — | Illinois |
| 57 | Eldon Gerrells | 21 | Head | Mechanic | Illinois |
| 58 | Ruth Gerrells | 18 | Wife | — | Illinois |
| 59 | Ramona Ann Gerrells | 1 | Daughter | — | Illinois |
| 60 | Lucian Reed | 68 | Head | Farmer | Illinois |
| 61 | Rickey Reed | 65 | Wife | — | Illinois |
| 62 | John Shipp | 64 | Cousin | Laborer | Illinois |
| 63 | George B. Seldon | 74 | Head | — | Illinois |
| 64 | Victoria Seldon | 70 | Wife | — | Illinois |
| 65 | Charles Black | 54 | Head | Farmer | Illinois |
| 66 | Luella Black | 55 | Wife | — | Illinois |
| 67 | Arland Black | 18 | Son | — | Illinois |
| 68 | J. C. Young | 27 | Head | Teacher | Illinois |
| 69 | Elizabeth Young | 20 | Wife | — | Illinois |
| 70 | Clyde Rindert | 43 | Head | — | Illinois |
| 71 | Ethel Rindert | 42 | Wife | — | Illinois |
| 72 | Logan Rhodes | 20 | Head | Laborer | Illinois |
| 73 | Lucille Rhodes | 17 | Wife | — | Illinois |
| 74 | Nina Fay Rhodes | 0 | Daughter | — | Illinois |
| 75 | John Gurlut | 63 | Head | Farmer | Illinois |
| 76 | Essie Gurlut | 63 | Wife | — | Illinois |
| 77 | Marion Davis | 57 | Head | Farmer | Illinois |
| 78 | Martha Davis THIS PERSON | 20 | Daughter | — | Illinois |
| 79 | Raymond Davis | 16 | Son | Truck Driver | Illinois |
| 80 | Jane Davis | 14 | Daughter | — | Illinois |
Pedigree Summary
Martha + 2 siblings
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)