RD
Ralph Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lawrence-County, Illinois
Our Model Tree links this Ralph Davis across the 1920, 1930 and 1940 US Censuses in Lawrence-County, Illinois (XGBoost, ~Confirmed), with identified parents Garland & Clinton — first a head (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, Illinois |
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Lawrenceville |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Occupation | Billing Clerk |
| Industry | Butler Egg & P. Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Billing Clerk |
| Township / Ward | Lawrenceville |
| Est. Birth Year | ~1911 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Nancy Davis | Daughter | — | 6 | ~1934 |
| Ralph Davis | Head | — | 29 | ~1911 |
| Winifred Davis | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Crawford, Illinois
Son, age 8
Crawford, Illinois · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ralph E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lawrence, Illinois
Son, age 19
Lawrence, Illinois · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| 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
Lawrence-County, Illinois
Head, age 29
Lawrence-County, Illinois · implied b. ~1911 — 3 household members
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Lawrenceville |
| 1935 Residence (County) | Lawrence |
| Occupation | Billing Clerk |
| Industry | Butler Egg & P. Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 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 3 locations, using XGBoost record linkage. Identified parents: father Garland Davis (~0.92 confidence) and father Clinton Davis (~0.92 confidence) and mother Ida Davis (~0.92 confidence) and mother Joanna Davis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Garland Davis
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Clinton Davis
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Ida Davis
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Joanna Davis
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Davis
Head · 1940 · age 29 · b. ~1911 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lawrence-County, Illinois
Open full size
1940 US Federal Census — Lawrence-County, Illinois
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-00835-00285)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lee Loyd | 3 | Son | — | Illinois |
| 42 | Larry Eugene Loyd | 1 | Son | — | Illinois |
| 43 | J H Pikelman|Pikelmann | 76 | Head | — | Illinois |
| 47 | John L Steele | 47 | Head | Telegraph Operator | Illinois |
| 48 | Mary B Steele | 46 | Wife | Ironer | Illinois |
| 49 | Philip Steele | 20 | Son | Apprentice Welder | Illinois |
| 50 | John L Jr. Steele | 21 | Son | — | Illinois |
| 51 | Betty Lou Steele | 17 | Daughter | — | Illinois |
| 52 | Grace Leach | 66 | Lodger | — | Illinois |
| 53 | Pauline Leach | 37 | Lodger | Sales Lady | Illinois |
| 54 | Arthur Powers | 27 | Head | Book Keeper | Missouri |
| 55 | Imogene Powers | 20 | Wife | — | Missouri |
| 56 | Linda Carol Powers | 2 | Daughter | — | Missouri |
| 57 | Arthur Jr. Powers | None | Son | — | Illinois |
| 58 | A L Powers | 53 | Father | Manager | Missouri |
| 59 | Minnie Powers | 46 | Mother | — | Ohio |
| 60 | John Powers | 22 | Brother | — | Illinois |
| 61 | Walter D Miles | 41 | Head | Salesman | Kansas |
| 62 | Garnett Miles | 38 | Wife | — | Kansas |
| 63 | Mabel Bell Miles | 14 | Daughter | — | Illinois |
| 64 | Lela F Miles | 12 | Daughter | — | Illinois |
| 65 | Lauretta E Miles | 7 | Daughter | — | Illinois |
| 67 | Ralph Davis THIS PERSON | 29 | Head | Billing Clerk | Illinois |
| 68 | Winifred Davis | 28 | Wife | — | Illinois |
| 69 | Nancy Jean Davis | 6 | Daughter | — | Illinois |
| 70 | Chester Quigley | 40 | Head | Janitor At | Illinois |
| 71 | Ioline Quigley | 34 | Wife | — | Illinois |
| 72 | Charles Quigley | 15 | Son | — | Illinois |
| 73 | Norma Lee Quigley | 13 | Daughter | — | Illinois |
| 74 | Mary Betty Quigley | 11 | Daughter | — | Illinois |
| 75 | Leona Fay Quigley | 4 | Daughter | — | Illinois |
| 76 | Robert Dale Quigley | 4 | Son | — | Illinois |
| 77 | John Allen | 74 | Father-in-law | — | Indiana |
| 78 | Geo R Goodman | 65 | Head | Retired | Illinois |
| 79 | Carry A B Goodman | 65 | Wife | — | Illinois |
Pedigree Summary
Ralph
Gen 1 · 4 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)