ET
Earl Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Earl Thomas across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 11-person household.
Age 10
b. ~1930
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Thomas |
| Given Name | Earl Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1930 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| Earl Thomas | Head | — | 37 | ~1903 |
| Henrietta Thomas | Spouse | — | 31 | ~1909 |
| Patricia Thomas | Daughter | — | 1 | ~1939 |
| Mildred Thomas | Daughter | — | 14 | ~1926 |
| Henrietta Thomas | Daughter | — | 7 | ~1933 |
| Elahne Thomas | Other | — | 54 | ~1886 |
| Marion Thomas | Daughter | — | 11 | ~1929 |
| George Thomas | Son | — | 8 | ~1932 |
| Earl Thomas | Son | — | 10 | ~1930 |
| Hallie Thomas | Other | — | 53 | ~1887 |
| Robert Thomas | Son | — | 5 | ~1935 |
Census Appearances
1930
Cook, Illinois
Other, age
Cook, Illinois · implied b. ~1930 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Earl Jr. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 10
Cook-County, Illinois · implied b. ~1930 — 11 household members
| Surname | Thomas |
| Given Name | Earl Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | No 5 |
| 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 Earl Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Earl Thomas
Son · 1940 · age 10 · b. ~1930 · Illinois
★ You are viewing this record
Sibling
Henrietta Thomas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Thomas
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thomas
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Thomas
Sibling · 1940 · age 8
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-t0627-00924-00407)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Meccola Ross | 24 | Wife | Laundress | Arkansas |
| 42 | Mae Jean Ross | 2 | Daughter | — | Illinois |
| 43 | Verlee Ross | 1 | Daughter | — | Illinois |
| 44 | James B. Rhodes | 27 | Brother | Porter | Arkansas |
| 45 | Vergie Willis | 40 | Lodger | Seamstress | Texas |
| 46 | Eoli King | 29 | Lodger | New Worker | Alabama |
| 47 | Johnnie Hadley | 45 | Head | Laborer | Tennessee |
| 48 | Maggie Hadley | 37 | Wife | — | Kentucky |
| 49 | Johnnie Jr. Hadley | 11 | Son | — | Illinois |
| 50 | Joseph Palmer | 28 | Lodger | Laborer | Louisiana |
| 51 | Virginia Palmer | 25 | Wife | — | Georgia |
| 52 | Rollin Sayles | 50 | Lodger | — | Kentucky |
| 53 | Gertrude Bowen | 53 | Head | — | Kentucky |
| 54 | Olie Bowen | 27 | Daughter | — | Kentucky |
| 55 | John Mcthirsty | 35 | Lodger | Laborer | Georgia |
| 56 | Curtis Dawson | 37 | Head | — | Georgia |
| 57 | Helen Dawson | 23 | Wife | — | Tennessee |
| 58 | Curtis Jr. Dawson | 4 | Son | — | Illinois |
| 59 | Ronel Dawson | 3 | Son | — | Illinois |
| 60 | Helen Dawson | 2 | Daughter | — | Illinois |
| 61 | Green Davis | 51 | Head | — | Kentucky |
| 62 | Carol Davis | 51 | Wife | — | Kentucky |
| 63 | Lorraine Anderson | 26 | Niece | — | Kentucky |
| 64 | Earl Thomas | 37 | Head | Laborer | Mississippi |
| 65 | Henrietta Thomas | 31 | Wife | — | Kentucky |
| 66 | Mildred Thomas | 14 | Daughter | — | Illinois |
| 67 | Marion Thomas | 11 | Daughter | — | Illinois |
| 68 | Earl Jr. Thomas THIS PERSON | 10 | Son | — | Illinois |
| 69 | George Thomas | 8 | Son | — | Illinois |
| 70 | Henrietta Thomas | 7 | Daughter | — | Illinois |
| 71 | Robert Thomas | 5 | Son | — | Illinois |
| 72 | Patricia Thomas | 1 | Daughter | — | Illinois |
| 73 | Elahne Thomas | 54 | Father | Laborer | Mississippi |
| 74 | Hallie Thomas | 53 | Mother | — | Mississippi |
| 75 | Extra | None | LINE | — | — |
| 76 | James Saunders | 52 | Head | Automotive Mechanic | Mississippi |
| 77 | Carrie Saunders | 53 | Wife | — | Mississippi |
| 78 | James Saunders | 16 | Son | — | Illinois |
| 79 | Carrie Saunders | 14 | Daughter | — | Illinois |
| 80 | Jessie Wymes | 54 | Head | Maid | Georgia |
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)