RD
Ralph Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Ralph Davis across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Channahon Twp |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Operator |
| Township / Ward | Channahon Twp |
| Est. Birth Year | ~1893 |
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 Ralph | Age | Birth yr |
|---|---|---|---|---|
| Mildred Davis | Daughter | — | 18 | ~1922 |
| Ralph Davis | Head | — | 47 | ~1893 |
| Richard Davis | Son | — | 20 | ~1920 |
| Flo Davis | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Will, Illinois
Head, age 27
Will, Illinois · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | EM |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Head, age 39
Will, Illinois · implied b. ~1891 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | farm operator |
| Industry | farming |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 7.00 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Head, age 47
Will-County, Illinois · implied b. ~1893 — 4 household members
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Channahon Twp |
| 1935 Residence (County) | Will |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| 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 Ralph Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ralph Davis
Head · 1940 · age 47 · b. ~1893 · Illinois
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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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00907-00019)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ann Howard | 58 | Sister | Waitress | Illinois |
| 42 | Mike Poulakas | 51 | Head | Operator | Greece |
| 43 | Irene Poulakas | 43 | Wife | — | Greece |
| 44 | Paul Poulakas | 20 | Son | Laborer | Illinois |
| 45 | Tony Poulakas | 18 | Son | Laborer | Illinois |
| 46 | John Poulakas | 16 | Son | — | Illinois |
| 47 | Irene Poulakas | 14 | Daughter | — | Illinois |
| 48 | George Poulakas | 6 | Son | — | Illinois |
| 49 | James Baltas | 55 | Head | Operator | Greece |
| 50 | Helen Baltas | 40 | Wife | — | Greece |
| 51 | Jack Baltas | 19 | Son | Laborer | Illinois |
| 52 | Genevieve Baltas | 18 | Daughter | — | Illinois |
| 53 | Irene Baltas | 15 | Daughter | — | Illinois |
| 54 | Sophie Baltas | 10 | Daughter | — | Illinois |
| 55 | Marina Baltas | 6 | Daughter | — | Illinois |
| 56 | Allen Mccowan | 56 | Head | Mail Carrier | Illinois |
| 57 | Charles Mccowan | 26 | Son | Laborer | Illinois |
| 58 | Andrew Olson | 44 | Head | Operator | Illinois |
| 59 | Clara Olson | 42 | Wife | — | Illinois |
| 60 | Olive Olson | 24 | Daughter | Laborer | Illinois |
| 61 | Mervin Olson | 16 | Son | Laborer | Illinois |
| 62 | Russell Olson | 13 | Son | — | Illinois |
| 63 | Otto Olson | 11 | Son | — | Illinois |
| 64 | Eleanore Olson | 9 | Daughter | — | Illinois |
| 65 | Alice Olson | 7 | Daughter | — | Illinois |
| 66 | Gladys Olson | 4 | Daughter | — | Illinois |
| 67 | Glen Olson | 2 | Son | — | Illinois |
| 68 | Barbara Olson | 2 | Daughter | — | Illinois |
| 69 | Leonard Olson | 1 | Son | — | Illinois |
| 70 | Alta Martens | 67 | Head | — | Illinois |
| 71 | Frank Fox | 24 | Lodger | Laborer | Illinois |
| 72 | Andrew Gillam | 75 | Head | — | Illinois |
| 73 | Margaret Gillam | 69 | Wife | — | Illinois |
| 74 | Raymond Gillam | 40 | Son | Operator | Illinois |
| 75 | Cecelia Gillam | 35 | Daughter | — | Illinois |
| 76 | William Gillam | 35 | Son | Laborer | Illinois |
| 77 | Ralph Davis THIS PERSON | 47 | Head | Operator | Illinois |
| 78 | Flo Davis | 45 | Wife | — | Illinois |
| 79 | Richard Davis | 20 | Son | — | Illinois |
| 80 | Mildred Davis | 18 | Daughter | — | Illinois |
Related Census Records
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)