TR
Thomas Reilly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Thomas Reilly across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 4-person household.
Age 46
b. ~1894
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Reilly |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | conductor |
| Industry | Public utility |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1825 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Conductor |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1894 |
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 |
|---|---|---|---|---|
| Thomas Reilly | Head | — | 46 | ~1894 |
| Mary Reilly | Daughter | — | 15 | ~1925 |
| Delia Reilly | Spouse | — | 40 | ~1900 |
| Thomas Reilly | Son | — | 16 | ~1924 |
Census Appearances
1920
Cook, Illinois
Other, age 25
Cook, Illinois · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | Thomas |
| Relationship to Head | brother |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1913 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | conductor |
| Industry | street car |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1917 |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Other, age 36
Cook, Illinois · implied b. ~1894 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reilly |
| Given Name | Thomas J. |
| Relationship to Head | lodger |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1914 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | laborer |
| Industry | building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | WW |
| Home Value / Rent | 10-57 |
| Veteran | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Head, age 46
Cook-County, Illinois · implied b. ~1894 — 4 household members
| Surname | Reilly |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | conductor |
| Industry | Public utility |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1825 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Reilly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Thomas Reilly
Head · 1940 · age 46 · b. ~1894 · Illinois
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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
38 people indexed on this census page (nara:1940:m-t0627-00954-00392)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rose Walker | 39 | Head | Office Clerk | Illinois |
| 42 | Emmett Walker | 18 | Son | — | Illinois |
| 43 | Leonard Walker | 16 | Son | — | Illinois |
| 44 | Thomas Reilly THIS PERSON | 46 | Head | Conductor | Ireland |
| 45 | Delia Reilly | 40 | Wife | — | Ireland |
| 46 | Thomas Jr. Reilly | 16 | Son | — | Illinois |
| 47 | Mary Reilly | 15 | Daughter | — | Illinois |
| 48 | Harry Strieger | 51 | Head | Waiter | Poland |
| 49 | Etta Strieger | 42 | Wife | — | Wisconsin |
| 50 | Stella Strieger | 16 | Daughter | — | Illinois |
| 51 | Joseph Strieger | 14 | Son | — | Illinois |
| 52 | Georgette Strieger | 12 | Daughter | — | Illinois |
| 53 | Bessie Smith | 61 | Wife | — | Illinois |
| 54 | William Smith | 68 | Head | — | Ireland |
| 55 | Thomas Crabb | 38 | Son | Labor | Illinois |
| 56 | Alice Crabb | 34 | Daughter in law | — | Illinois |
| 57 | Florence Crabb | 10 | Niece | — | Illinois |
| 58 | Delores Crabb | 3 | Niece | — | Illinois |
| 59 | Paul Miller | 42 | Head | Roofer | Germany |
| 60 | Pauline Miller | 47 | Wife | Janitress | Norway |
| 61 | Alfred Miller | 22 | Son | Roofer | Illinois |
| 62 | Martin Hagen | 48 | Head | Watchman | Norway |
| 63 | Daniel Hagen | 33 | Wife | — | Pennsylvania |
| 64 | Audry Hagen | 11 | Daughter | — | Pennsylvania |
| 65 | Lora Schaller | 69 | Head | — | Indiana |
| 66 | Ben Schaller | 48 | Son | Accountant | Pennsylvania |
| 67 | Leonore Schaller | 46 | Daughter | — | Indiana |
| 68 | William Schaller | 36 | Son | Clerk | Indiana |
| 69 | Frank Gildea | 41 | Head | Labor | Ireland |
| 70 | Mary Gildea | 31 | Wife | — | Ireland |
| 71 | Francis Gildea | 9 | Son | — | Illinois |
| 72 | Susan Gildea | 7 | Daughter | — | Illinois |
| 73 | Denis Gildea | 3 | Son | — | Illinois |
| 74 | Margaret Gildea | 1 | Daughter | — | Illinois |
| 75 | James Green | 42 | Head | Waiter | Wisconsin |
| 76 | Marie Green | 42 | Wife | — | Illinois |
| 77 | Joseph Coles | 54 | Head | Electric Engineer | Illinois |
| 78 | Ruby Coles | 52 | Wife | — | Canada |
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)