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John Roche — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Roche across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 5-person household.
Age 70
b. ~1870
Male
Head
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Roche |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birthplace (normalized) | irish free state |
| Township / Ward | Chicago |
| Est. Birth Year | ~1870 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Roche | Daughter | — | 33 | ~1907 |
| John Roche | Son | — | 34 | ~1906 |
| James Roche | Son | — | 29 | ~1911 |
| John Roche | Head | — | 70 | ~1870 |
| Ellen Roche | Spouse | — | 67 | ~1873 |
Census Appearances
1930
Cook, Illinois
Head, age 60
Cook, Illinois · implied b. ~1870 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roche |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 31 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Janitor |
| Industry | Apt. Bldg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Birthplace (normalized) | irish free state |
1940
Cook-County, Illinois
Head, age 70
Cook-County, Illinois · implied b. ~1870 — 5 household members
| Surname | Roche |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birthplace (normalized) | irish free state |
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 John Roche across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Roche
Head · 1940 · age 70 · b. ~1870 · 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
40 people indexed on this census page (nara:1940:m-t0627-01007-00033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gordon Donoff | 7 | son | — | Illinois |
| 2 | Hans M Holmberg | 54 | Head | Truck Driver | Illinois |
| 3 | Tessie Holmberg | 54 | wife | — | Illinois |
| 4 | Martin Holmberg | 29 | son | Pressman | Illinois |
| 5 | Benjamin Holmberg | 25 | son | Loader | Illinois |
| 6 | Theresa Bauer | 5 | Granddaughter | — | Illinois |
| 7 | Julia Werr | 70 | Head | — | Germany |
| 8 | Mary Werr | 62 | Sister | — | Germany |
| 9 | John G Repp | 35 | Head | Janitor | Romania |
| 10 | Elsie Repp | 34 | wife | — | Romania |
| 11 | Louise A Repp | 12 | daughter | — | Illinois |
| 12 | Max Wyss | 42 | Head | Dental Technician | Switzerland |
| 13 | Paulette Wyss | 36 | wife | — | Switzerland |
| 14 | Max Wyss | 11 | son | — | Illinois |
| 15 | Estelle Wyss | 8 | daughter | — | Illinois |
| 16 | John Doyle | 76 | Head | Office Clerk | Illinois |
| 17 | Ann Doyle | 63 | wife | — | Poland |
| 18 | Annebelle Doyle | 25 | daughter | Office Clerk | Illinois |
| 19 | John Doyle | 22 | son | Laborer | Illinois |
| 20 | John J. Roche THIS PERSON | 70 | Head | — | Irish Free State |
| 21 | Ellen Roche | 67 | wife | — | Irish Free State |
| 22 | John P. Roche | 34 | son | Lawyer | Massachusetts |
| 23 | Mary R. Roche | 33 | daughter | School Teacher | Massachusetts |
| 24 | James J. Roche | 29 | son | Tax Clerk | Massachusetts |
| 25 | Adeline Gathorn | 44 | Head | Telephone Operator | Illinois |
| 26 | Amelia Gathorn | 40 | Sister | Phone Operator | Illinois |
| 27 | Max Dehls | 35 | Head | Painter | Germany |
| 28 | Frieda Dehls | 30 | wife | — | Germany |
| 29 | Margaret Dehls | 6 | daughter | — | Illinois |
| 30 | Frank Sullivan | 33 | Head | Field Secretary | Illinois |
| 31 | Celia Sullivan | 36 | wife | — | Indiana |
| 32 | Harold Sullivan | 18 | son | — | Illinois |
| 33 | Frank Sullivan | 9 | son | — | Illinois |
| 34 | Nick Manning | 34 | Head | Laundry Worker | Romania |
| 35 | Ann Manning | 30 | wife | — | Illinois |
| 36 | Robert Manning | 6 | son | — | Illinois |
| 37 | Joseph Schlitter | 40 | Head | Boiler Maker | Kansas |
| 38 | Veronica Schlitter | 39 | wife | — | Kansas |
| 39 | Lawrence Schlitter | 19 | son | General Office | Kansas |
| 40 | Raymond Schlitter | 16 | son | — | Kansas |
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)