RD
Ralph Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ralph Davis across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 14-person household.
Age 12
b. ~1928
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1928 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Patricia Davis | Daughter | — | 2 | ~1938 |
| Ramona Davis | Daughter | — | 10 | ~1930 |
| Cecil Davis | Daughter | — | 3 | ~1937 |
| Virgil Davis | Daughter | — | 6 | ~1934 |
| Mildred Davis | Daughter | — | 7 | ~1933 |
| Grace Davis | Head | — | 36 | ~1904 |
| Hattie Carroll | Other | — | 71 | ~1869 |
| Ralph Davis | Son | — | 12 | ~1928 |
| Bernard Davis | Son | — | 8 | ~1932 |
| Kenneth Davis | Son | — | 16 | ~1924 |
| Edward Davis | Son | — | 17 | ~1923 |
| Charles Davis | Son | — | 5 | ~1935 |
| Arnold Davis | Son | — | 14 | ~1926 |
| Rudolph Davis | Son | — | 13 | ~1927 |
Census Appearances
1930
Cook, Illinois
Son, age 2
Cook, Illinois · implied b. ~1928 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Louisiana |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 12
Cook-County, Illinois · implied b. ~1928 — 14 household members
| Surname | Davis |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | 6 |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ralph Davis
Son · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
Edward Davis
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Davis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Davis
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Davis
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virgil Davis
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rudolph Davis
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Davis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Davis
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecil Davis
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ramona Davis
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Davis
Sibling · 1940 · age 7
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00926-00864)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leola Brock | 3 | Granddaughter | — | Illinois |
| 2 | Grace Davis | 36 | Head | — | Louisiana |
| 3 | Edward Jr Davis | 17 | Son | Messenger | Tennessee |
| 4 | Kenneth Davis | 16 | Son | — | Illinois |
| 5 | Arnold Davis | 14 | Son | — | Illinois |
| 6 | Rudolph Davis | 13 | Son | — | Illinois |
| 7 | Ralph Davis THIS PERSON | 12 | Son | — | Illinois |
| 8 | Ramona Davis | 10 | Daughter | — | Illinois |
| 9 | Bernard Davis | 8 | Son | — | Illinois |
| 10 | Mildred Davis | 7 | Daughter | — | Illinois |
| 11 | Virgil L Davis | 6 | Daughter | — | Illinois |
| 12 | Cecil R Davis | 3 | Daughter | — | Illinois |
| 13 | Charles Davis | 5 | Son | — | Illinois |
| 14 | Patricia Davis | 2 | Daughter | — | Illinois |
| 15 | Hattie M Carroll | 71 | Mother | — | Georgia |
| 16 | Benny Denis | 44 | Head | Laborer | Georgia |
| 17 | Venie Denis | 42 | Wife | — | Georgia |
| 18 | Edward Denis | 18 | Son | — | Illinois |
| 19 | Theodore Denis | 16 | Son | — | Illinois |
| 20 | Venie Denis | 13 | Daughter | — | Illinois |
| 21 | Roy Denis | 11 | Son | — | Illinois |
| 22 | Delores Denis | 9 | Daughter | — | Illinois |
| 23 | Mose Bennifield | 46 | Head | Washer | Georgia |
| 24 | Marie Bennifield | 36 | Wife | — | Mississippi |
| 25 | Edward Bennifield | 21 | Son | New Worker | Illinois |
| 26 | Donald Bennifield | 19 | Son | — | Illinois |
| 27 | Sherman Bennifield | 13 | Son | — | Illinois |
| 28 | Dorothy Bennifield | 11 | Daughter | — | Illinois |
| 29 | Delores Bennifield | 9 | Daughter | — | Illinois |
| 30 | Theresa Bennifield | 6 | Daughter | — | Illinois |
| 31 | Phillida Bennifield | 5 | Daughter | — | Illinois |
| 32 | Morris Bennifield | 4 | Son | — | Illinois |
| 33 | Glenda Bennifield | 2 | Daughter | — | Illinois |
| 34 | Lemuel Bennifield | 1 | Son | — | Illinois |
| 35 | Silvester Reed | 43 | Head | Labor | Mississippi |
| 36 | Ida Reed | 42 | Wife | — | Arkansas |
| 37 | Silvester Jr Reed | 14 | Son | — | Illinois |
| 38 | Maxine Reed | 13 | Daughter | — | Illinois |
| 39 | Emma Blaine | 36 | Head | — | Alabama |
| 40 | Midget Russel | 46 | Lodger | — | Kansas |
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)