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Thomas Walsh — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Thomas Walsh across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a son (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Walsh |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Traffic Mgr |
| Industry | Sporting Goods |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Traffic Mgr |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1912 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mary Walsh | Daughter | — | 27 | ~1913 |
| Patrick Walsh | Head | — | 67 | ~1873 |
| Patrick Walsh | Son | — | 35 | ~1905 |
| Thomas Walsh | Son | — | 28 | ~1912 |
| Cecelia Walsh | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Cook, Illinois
Son, age 8
Cook, Illinois · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 18
Cook, Illinois · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 28
Cook-County, Illinois · implied b. ~1912 — 5 household members
| Surname | Walsh |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Traffic Mgr |
| Industry | Sporting Goods |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | H-4 |
| 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 Walsh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Walsh (~0.92 confidence) and father Patrick Walsh (~0.92 confidence) and mother Cecelia Walsh (~0.92 confidence) and mother Kate Walsh (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Walsh
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Patrick Walsh
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Cecelia Walsh
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Kate Walsh
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Walsh
Son · 1940 · age 28 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Patrick Walsh
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Walsh
Sibling · 1940 · age 27
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-t0627-00989-00658)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Stolarz | 19 | daughter | — | Illinois |
| 42 | Virginia Stolarz | 13 | daughter | — | Illinois |
| 43 | Henry Regenstreif | 26 | Head | Laborer | Illinois |
| 44 | Sophie Regenstreif | 24 | wife | Assembler | Illinois |
| 45 | Michael Somal | 49 | Head | Killer | Poland |
| 46 | Sophie Somal | 46 | wife | — | Poland |
| 47 | Phyllis Somal | 24 | daughter | Dancer | Illinois |
| 48 | Florence Somal | 24 | daughter | Dancer | Illinois |
| 49 | Isadore Burger | 57 | Head | Pharmacist | Russia |
| 50 | Anne Burger | 55 | wife | — | Illinois |
| 51 | Sarah Burger | 27 | daughter | Pharmacist Asst | Illinois |
| 52 | Irving Burger | 20 | son | Pharmacist App | Illinois |
| 53 | R. B. Morton | 25 | Head | Clergyman | Wisconsin |
| 54 | Mildred Morton | 30 | wife | — | Iowa |
| 55 | D'Arlene Morton | 2 | daughter | — | Wisconsin |
| 56 | Charles Rock | 61 | Head | Book Binder | Illinois |
| 57 | Bertha Rock | 58 | wife | — | New York |
| 58 | Moscher Emma Rock | 62 | sister in law | — | Illinois |
| 59 | Ida Kopp | 51 | Head | — | Illinois |
| 60 | George Kopp | 23 | son | Punch Press Oper | Illinois |
| 61 | Stieve Bertha Kopp | 71 | Mother | — | Germany |
| 62 | Beck Bertha Kopp | 36 | Sister | Timekeeper | Illinois |
| 63 | Leo Syparkiewicz | 51 | Head | — | Poland |
| 64 | Juliana Syparkiewicz | 41 | son | Salesman | Illinois |
| 65 | Rose Syparkiewicz | 37 | daughter in law | — | Illinois |
| 66 | Vito Valenzano | 46 | Head | Salesman | Illinois |
| 67 | Sophie Valenzano | 42 | wife | — | Illinois |
| 68 | Rita Valenzano | 13 | daughter | Asst Art Dept | Illinois |
| 69 | Arlene Valenzano | 13 | daughter | — | Illinois |
| 70 | Celeste Liorri | 39 | brother in law | Mailer | Illinois |
| 71 | William Markham | 49 | Head | Fireman | Illinois |
| 72 | Catherine Markham | 35 | wife | — | Illinois |
| 73 | Loraine Markham | 15 | daughter | — | Illinois |
| 74 | Marilyn Markham | 12 | daughter | — | Illinois |
| 75 | William Markham | 10 | son | — | Illinois |
| 76 | Patrick Sr. Walsh | 67 | Head | Retired Police | Ireland |
| 77 | Cecelia Walsh | 62 | wife | — | Ireland |
| 78 | Mary Walsh | 27 | daughter | Stenographer | Illinois |
| 79 | Patrick Jr. Walsh | 35 | son | Manager | Illinois |
| 80 | Thomas Walsh THIS PERSON | 28 | son | Traffic Mgr | Illinois |
Pedigree Summary
Thomas + 2 siblings
Gen 1 · 4 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)