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Joseph Roberts — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Joseph Roberts across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Roberts |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Houston |
| Additional Details | |
| Highest Grade | No 7 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Bremen Twp |
| Est. Birth Year | ~1927 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Luke Roberts | Son | — | 16 | ~1924 |
| Sylvia Roberts | Daughter | — | 11 | ~1929 |
| Matthew Roberts | Son | — | 17 | ~1923 |
| Matthew Roberts | Head | — | 49 | ~1891 |
| Joseph Roberts | Son | — | 13 | ~1927 |
| Mary Roberts | Spouse | — | 45 | ~1895 |
| Elise Roberts | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Cook, Illinois
Son, age 3
Cook, Illinois · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Joe |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Mississippi |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 13
Cook-County, Illinois · implied b. ~1927 — 7 household members
| Surname | Roberts |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Houston |
| Highest Grade | No 7 |
| 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 Joseph Roberts across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Roberts
Son · 1940 · age 13 · b. ~1927 · Illinois
★ You are viewing this record
Sibling
Luke Roberts
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elise Roberts
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvia Roberts
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Matthew Roberts
Sibling · 1940 · age 17
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-t0627-00775-00665)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stephen Robinson | 57 | Head | Janitor | Alabama |
| 2 | Mary Robinson | 50 | Wife | — | Tennessee |
| 3 | Stephen Jr Robinson | 25 | Son | Service Station | Mississippi |
| 4 | Percy Robinson | 24 | Son | Laborer | Mississippi |
| 5 | Ethel Robinson | 19 | Daughter | — | Mississippi |
| 6 | Matthew Roberts | 49 | Head | Laboring | Texas |
| 7 | Mary P Roberts | 45 | Wife | — | Kansas |
| 8 | Elise Roberts | 20 | Daughter | Clerk | Nebraska |
| 9 | Matthew Jr Roberts | 17 | Son | Hand Excavation | Nebraska |
| 10 | Luke Roberts | 16 | Son | — | Nebraska |
| 11 | Joseph Roberts THIS PERSON | 13 | Son | — | Illinois |
| 12 | Sylvia Roberts | 11 | Daughter | — | Illinois |
| 13 | George H Smith | 52 | Head | — | Illinois |
| 14 | Anna Smith | 49 | Wife | Helping Housekeeper | Texas |
| 15 | Blanche Daves | 24 | Lodger | — | Mississippi |
| 16 | Robert Jr Daves | 5 | Lodger | — | Illinois |
| 17 | Kenneth Daves | 3 | Lodger | — | Illinois |
| 18 | Shirley Daves | 2 | Lodger | — | Illinois |
| 19 | Marva Daves | 1 | Lodger | — | Illinois |
| 20 | Junius W Armstrong | 48 | Head | Manager | Mississippi |
| 21 | Saddie Armstrong | 68 | Mother | — | Mississippi |
| 22 | Thomas Mix | 57 | Head | Carpenter | Mississippi |
| 23 | Mollie Mix | 40 | Wife | — | Mississippi |
| 24 | Polyzona Mix | 22 | Daughter | Clerk | Mississippi |
| 25 | Ernestine Mix | 20 | Daughter | New Worker | Mississippi |
| 26 | Cleophis Thompson | 24 | Brother | Veterinary | Mississippi |
| 27 | Mattie Dampheer | 51 | Head | — | Mississippi |
| 28 | Art Dampheer | 25 | Son | — | Mississippi |
| 29 | Myrtle Dampheer | 19 | Daughter | Helper | Mississippi |
| 30 | Robert Dampheer | 17 | Son | New Worker | Mississippi |
| 31 | Doris Dampheer | 15 | Daughter | — | Mississippi |
| 32 | Ernestine Dampheer | 12 | Daughter | — | Mississippi |
| 33 | Lewis Dampheer | 9 | Son | — | Mississippi |
| 34 | Jewell Dampheer | 8 | Daughter | — | Mississippi |
| 35 | George Carey | 43 | Head | Laborer | West Virginia |
| 36 | Grace Carey | 30 | Wife | — | Illinois |
| 37 | Thelma Carey | 13 | Daughter | — | Illinois |
| 38 | Jean Carey | 10 | Daughter | — | Illinois |
| 39 | Donald Carey | 9 | Son | — | Illinois |
| 40 | Donald Carey | 7 | Son | — | Illinois |
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)