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Thomas Adams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Thomas Adams across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Frank & Lillie — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Adams |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Assistant Foreman |
| Industry | Railroad Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1950 |
| Highest Grade | H-3 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Assistant Foreman |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1913 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Florence Adams | Daughter | — | 1 | ~1939 |
| Caroline Adams | Daughter | — | 2 | ~1938 |
| Thomas Adams | Head | — | 27 | ~1913 |
| Dorothy Adams | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Wisconsin |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 16
Cook, Illinois · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Thomas B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 27
Cook-County, Illinois · implied b. ~1913 — 4 household members
| Surname | Adams |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Assistant Foreman |
| Industry | Railroad Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1950 |
| Highest Grade | H-3 |
| 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 Thomas Adams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Adams (~0.92 confidence) and mother Lillie Adams (~0.92 confidence) and mother Nellie Adams (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Adams
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Lillie Adams
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Nellie Adams
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Adams
Head · 1940 · age 27 · b. ~1913 · 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 — 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-t0627-01001-00972)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grace Abbott | 32 | Wife | Court Stenog. | Ohio |
| 42 | Henry Jr. Abbott | 13 | Son | — | Ohio |
| 43 | Donna Abbott | 11 | Daughter | — | Ohio |
| 44 | Gary Abbott | 7 | Son | — | Illinois |
| 45 | Louisa B. Hasking | 55 | Mother-in-law | — | Illinois |
| 46 | Thomas Adams THIS PERSON | 27 | Head | Assistant Foreman | Illinois |
| 47 | Dorothy Adams | 29 | Wife | — | Illinois |
| 48 | Caroline Adams | 2 | Daughter | — | Illinois |
| 49 | Florence Adams | 1 | Daughter | — | Illinois |
| 50 | Charles Jr. Abel | 25 | Head | Auto Mechanic | Illinois |
| 51 | Marion Abel | 25 | Wife | — | Illinois |
| 52 | Marilyn Abel | 3 | Daughter | — | Illinois |
| 53 | Julia Theisen | 63 | Mother-in-law | Service Inspector | Minnesota |
| 54 | Henry H. Theuer | 74 | Head | — | Illinois |
| 55 | Frances Theuer | 73 | Wife | — | Germany |
| 56 | Rudolph Theuer | 44 | Son | Net-Assembler | Illinois |
| 57 | Edward Theuer | 28 | Son | Repair-Man | Illinois |
| 58 | Leroy Harwood | 36 | Head | Bookkeeper | Illinois |
| 59 | Eleanore Harwood | 34 | Wife | — | Illinois |
| 60 | Robert Harwood | 7 | Son | — | Illinois |
| 61 | David Harwood | 5 | Son | — | Illinois |
| 62 | Marion Gross | 27 | Lodger | Switchboard Op. | Illinois |
| 63 | Henry Moriarty | 57 | Head | Baker | Illinois |
| 64 | Marie Moriarty | 52 | Wife | — | Germany |
| 65 | Harold Moriarty | 25 | Son | Teamster | Illinois |
| 66 | Carol Jean Moriarty | 3 | Daughter | — | Illinois |
| 67 | George L. Mcdonald | 66 | Head | — | New York |
| 68 | Margaret Mcdonald | 46 | Wife | — | Colorado |
| 69 | John K. Mcdonald | 23 | Son | Substitute Letter Carrier | Illinois |
| 70 | James J. Mcdonald | 22 | Son | — | Illinois |
| 71 | Catherine Ahern | 67 | Head | — | Irish Free State |
| 72 | Mary Ahern | 31 | Daughter | Bookkeeper | Ohio |
| 73 | Margaret Ahern | 28 | Daughter | Saleslady | Ohio |
| 74 | Isador Portugal | 46 | Head | Agent Salesman | Russia |
| 75 | Ida Portugal | 42 | Wife | — | Russia |
| 76 | Gertrude Portugal | 19 | Daughter | — | Illinois |
| 77 | Madeline Portugal | 12 | Daughter | — | Illinois |
| 78 | Anton Kahn | 47 | Brother-in-law | Salesman | Russia |
| 79 | Donald Kahn | 13 | Nephew | — | Illinois |
| 80 | Nels Paterson | 72 | Head | — | Sweden |
Pedigree Summary
Thomas
Gen 1 · 3 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)