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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.~1896), then head of a 5-person household.
Age 44
b. ~1896
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Roche |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Stock Yards |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1653 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Stenographer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1896 |
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 |
|---|---|---|---|---|
| James Roche | Son | — | 14 | ~1926 |
| Patricia Roche | Daughter | — | 15 | ~1925 |
| Suzanne Roche | Daughter | — | 17 | ~1923 |
| Anne Roche | Spouse | — | 36 | ~1904 |
| John Roche | Head | — | 44 | ~1896 |
Census Appearances
1930
Cook, Illinois
Head, age 34
Cook, Illinois · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roche |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Iowa |
| Occupation | Construction Engineer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 75 |
| Radio Set | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cook-County, Illinois
Head, age 44
Cook-County, Illinois · implied b. ~1896 — 5 household members
| Surname | Roche |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Stenographer |
| Industry | Stock Yards |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1653 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 44 · b. ~1896 · 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-t0627-00941-00421)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roderick Morrell | 3 | Son | — | Illinois |
| 2 | Kenneth Morrell | 0 | Son | — | Illinois |
| 3 | John P. Roche THIS PERSON | 44 | Head | Stenographer | Iowa |
| 4 | Anne Roche | 36 | Wife | — | Wisconsin |
| 5 | Suzanne Roche | 17 | Daughter | — | Minnesota |
| 6 | Patricia Roche | 15 | Daughter | — | Illinois |
| 7 | James Roche | 14 | Son | — | Illinois |
| 8 | End Of Block 10 And Begin Block 11 | None | — | — | — |
| 9 | William O'Neill | 49 | Head | Civil Engineer | Illinois |
| 10 | Marie E. O'Neill | 45 | Wife | — | Missouri |
| 11 | Grace O'Neill | 25 | Daughter | New Worker | Illinois |
| 12 | Helen Duggan | 21 | Lodger | Assistant Buyer | Illinois |
| 13 | Catharine Heligan | 70 | Head | — | Eire |
| 14 | Nellie Heligan | 50 | Daughter | — | Illinois |
| 15 | James Heligan | 47 | Son | — | Illinois |
| 16 | Stella M. Sanborn | 71 | Aunt | Teacher | Kansas |
| 17 | James F. Mcclanahan | 36 | Cousin | Teacher | Kansas |
| 18 | Patrick C. Courtney | 48 | Head | Fire Department | Illinois |
| 19 | Henrietta M. Courtney | 47 | Wife | Teacher | Illinois |
| 20 | Wendell Mcmunn | 42 | Head | Janitor | Illinois |
| 21 | Laura Mcmunn | 40 | Wife | Waitress | Illinois |
| 22 | John Mcmunn | 17 | Son | — | Illinois |
| 23 | Randall Mcmunn | 14 | Son | — | Illinois |
| 24 | Betty Mcmunn | 13 | Daughter | — | Illinois |
| 25 | George S. Collins | 41 | Head | Cutter For Maker | Illinois |
| 26 | Lydia A. Collins | 31 | Wife | — | Illinois |
| 27 | George S. Jr. Collins | 7 | Son | — | Illinois |
| 28 | James R. Collins | 3 | Son | — | Illinois |
| 29 | Mother Rachel G. | None | F | Restaurant | — |
| 30 | William Pemberton | 35 | Head | Salesman | Ohio |
| 31 | Clara D. Pemberton | 35 | Wife | — | Ohio |
| 32 | William Pemberton | 15 | Son | — | Ohio |
| 33 | John Pemberton | 5 | Son | — | Illinois |
| 34 | Byron Jr. Crowe | 30 | Head | Chief Clerk | Minnesota |
| 35 | Helen Crowe | 27 | Wife | — | Ohio |
| 36 | John Philip Crowe | 3 | Son | — | Illinois |
| 37 | Nancy Carol Crowe | 0 | Daughter | — | Illinois |
| 38 | Albert Willadson | 35 | Head | Attendant | Denmark |
| 39 | Myrtle Willadson | 27 | Wife | Stenographer | Illinois |
| 40 | Margaret Barry | 64 | Head | — | Ireland |
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)