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Pearl Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Pearl Thompson across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 10-person household.
Age 14
b. ~1926
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Thompson |
| Given Name | Pearl |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Maywood Village |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Hours Worked | 6 |
| Highest Grade | S 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Maywood Village |
| Est. Birth Year | ~1926 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Pearl | Age | Birth yr |
|---|---|---|---|---|
| Pearl Thompson | Daughter | — | 14 | ~1926 |
| Elsie Thompson | Daughter | — | 25 | ~1915 |
| Ruby Thompson | Daughter | — | 16 | ~1924 |
| Edna Thompson | Daughter | — | 7 | ~1933 |
| Alfred Thompson | Son | — | 10 | ~1930 |
| Mamie Thompson | Spouse | — | 49 | ~1891 |
| Helen Thompson | Daughter | — | 9 | ~1931 |
| Herbert Thompson | Son | — | 19 | ~1921 |
| James Thompson | Son | — | 23 | ~1917 |
| George Thompson | Head | — | 51 | ~1889 |
Census Appearances
1930
Cook, Illinois
Daughter, age 3
Cook, Illinois · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Penelope |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 14
Cook-County, Illinois · implied b. ~1926 — 10 household members
| Surname | Thompson |
| Given Name | Pearl |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Maywood Village |
| 1935 Residence (County) | Cook |
| Hours Worked | 6 |
| Highest Grade | S 8 |
| 1935 Residence | Same House |
| 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 Pearl Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Pearl Thompson
Daughter · 1940 · age 14 · b. ~1926 · Illinois
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Sibling
James Thompson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Thompson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Thompson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Thompson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Thompson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Thompson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Thompson
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-t0627-00787-00829)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ralph Hill | 12 | Son | — | Illinois |
| 42 | Rufus Morse | 44 | Head | Maintenance | Iowa |
| 43 | Miriam Morse | 42 | Wife | — | Kentucky |
| 44 | Mary Lee Morse | 13 | Daughter | — | Illinois |
| 45 | Robert Morse | 11 | Son | — | Illinois |
| 46 | Barbara Morse | 5 | Daughter | — | Illinois |
| 47 | Willard Morse | 5 | Son | — | Illinois |
| 48 | Gerhard Goudschel | 38 | Head | Railway Mail Clerk | Illinois |
| 49 | Christina Goudschel | 36 | Wife | — | Illinois |
| 50 | Robert Goudschel | 14 | Son | — | Illinois |
| 51 | Phillip Goudschel | 6 | Son | — | Illinois |
| 52 | Albert Kline | 32 | Head | Meter Tester | Colorado |
| 53 | Mary Kline | 39 | Wife | — | Indiana |
| 54 | Charlotte Kline | 5 | Daughter | — | Illinois |
| 55 | A. J. Bolton | 33 | Head | Welder | Kentucky |
| 56 | Esther Bolton | 33 | Wife | — | Iowa |
| 57 | James Bolton | 13 | Son | — | Minnesota |
| 58 | Betty L. Bolton | 13 | Daughter | — | Illinois |
| 59 | Earl Collignon | 35 | Head | Maintenance Man | Illinois |
| 60 | Barbara Collignon | 31 | Wife | — | Wisconsin |
| 61 | Shirley Collignon | 10 | Daughter | — | Illinois |
| 62 | Barbara Ann Collignon | 8 | Daughter | — | Illinois |
| 63 | Earl Jr Collignon | 1 | Son | — | Illinois |
| 64 | Edgar Matthews | 41 | Head | Conductor | Illinois |
| 65 | Olga Matthews | 33 | Wife | — | Russia |
| 66 | Charmaine Matthews | 4 | Daughter | — | Illinois |
| 67 | Lloyd Peterson | 37 | Head | Stationary Engineer | South Dakota |
| 68 | Esther Peterson | 38 | Wife | — | Minnesota |
| 69 | Donna Gale Peterson | 4 | Daughter | — | Illinois |
| 70 | Earl Gene Peterson | 2 | Son | — | Illinois |
| 71 | George Thompson | 51 | Head | Carpenter | Illinois |
| 72 | Mamie Thompson | 49 | Wife | — | Illinois |
| 73 | Elsie Thompson | 25 | Daughter | Comptometer Operator | Illinois |
| 74 | James Thompson | 23 | Son | Private Stenographer | Illinois |
| 75 | Herbert Thompson | 19 | Son | New Worker | Illinois |
| 76 | Ruby Thompson | 16 | Daughter | — | Illinois |
| 77 | Pearl Thompson THIS PERSON | 14 | Daughter | — | Illinois |
| 78 | Alfred Thompson | 10 | Son | — | Illinois |
| 79 | Helen Thompson | 9 | Daughter | — | Illinois |
| 80 | Edna Thompson | 7 | Daughter | — | 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)