JC
John Carney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Carney across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 7-person household.
Age 62
b. ~1878
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | CARNEY |
| Given Name | JOHN W |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Frog Prod. Salesman |
| Industry | Meat Packers |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 2400 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Frog Prod. Salesman |
| Township / Ward | Chicago |
| Est. Birth Year | ~1878 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Vincent Carney | Son | — | 22 | ~1918 |
| Mary Carney | Daughter | — | 17 | ~1923 |
| Mary Carney | Spouse | — | 52 | ~1888 |
| John Carney | Head | — | 62 | ~1878 |
| Francis Carney | Son | — | 25 | ~1915 |
| Rosamund Carney | Daughter | — | 27 | ~1913 |
| Margaret Parker | Other | — | 75 | ~1865 |
Census Appearances
1930
Cook, Illinois
Head, age 53
Cook, Illinois · implied b. ~1877 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carney |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Vermont |
| Occupation | Salesman |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cook-County, Illinois
Head, age 62
Cook-County, Illinois · implied b. ~1878 — 7 household members
| Surname | CARNEY |
| Given Name | JOHN W |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Frog Prod. Salesman |
| Industry | Meat Packers |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 2400 |
| Highest Grade | Hs 2 |
| 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 Carney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Carney
Head · 1940 · age 62 · b. ~1878 · 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-t0627-00981-00774)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lawrence A Clochessy | 51 | HEAD | Fireman | Illinois |
| 42 | Ruth Clochessy | 48 | WIFE | — | Illinois |
| 43 | Joseph T Marotta | 39 | HEAD | Elevator Oper & Maint Watchman | Italy |
| 44 | Lottie R Marotta | 37 | WIFE | — | Illinois |
| 45 | William Reid | 64 | HEAD | President | Iowa |
| 46 | Anne P Reid | 53 | WIFE | Office Super. | Illinois |
| 47 | Caryl H Wilson | 20 | LODGER | Pri. Secretary | Illinois |
| 48 | Elmer R Preiss | 40 | HEAD | Auto Salesman | Illinois |
| 49 | Pearl B Preiss | 40 | WIFE | — | Arkansas |
| 50 | Elmer R Jr Preiss | 20 | SON | Park Lot Attend. | Illinois |
| 51 | Lorraine L Preiss | 19 | DAUGHTER | — | Illinois |
| 52 | John R Osterman | 44 | HEAD | Policeman | Illinois |
| 53 | Helen M Osterman | 43 | WIFE | Pearl Stringer | Illinois |
| 54 | Lillian F La Pierre | 20 | STEPDAUGHTER | Candy Worker | Illinois |
| 55 | Nellie Mcandrew | 74 | MOTHER-IN-LAW | — | Eire |
| 56 | Ernest Berg | 47 | HEAD | Contract Painter | Virginia |
| 57 | Mamie Berg | 57 | WIFE | — | Illinois |
| 58 | John W Carney THIS PERSON | 62 | HEAD | Frog Prod. Salesman | Iowa |
| 59 | Mary P Carney | 52 | WIFE | — | Illinois |
| 60 | Rosamund M Carney | 27 | DAUGHTER | Teacher | Illinois |
| 61 | Francis J Carney | 25 | SON | Radio Salesman | Illinois |
| 62 | Vincent J Carney | 22 | SON | Law Clerk | Illinois |
| 63 | Mary G Carney | 17 | DAUGHTER | — | Illinois |
| 64 | Margaret Parker | 75 | MOTHER-IN-LAW | — | Louisiana |
| 65 | Mary Casey | 60 | HEAD | — | Eire |
| 66 | James T Casey | 36 | SON | Street Car Motorman | Illinois |
| 67 | Thomas A Casey | 35 | SON | Salesman | Illinois |
| 68 | Valentine J Casey | 26 | DAUGHTER | Teacher | Illinois |
| 69 | Mary E Casey | 24 | DAUGHTER | Office Clerk | Illinois |
| 70 | Edward J Casey | 17 | SON | — | Illinois |
| 71 | George Demakis | 36 | HEAD | Candy Merchant | Greece |
| 72 | Mary Demakis | 31 | WIFE | — | Greece |
| 73 | Helen Demakis | 11 | DAUGHTER | — | Illinois |
| 74 | John Demakis | 1 | SON | — | Illinois |
| 75 | Thomas J Mchugh | 38 | HEAD | Stock Brokerage Customer Man | Illinois |
| 76 | Margaret Mchugh | 38 | WIFE | — | Illinois |
| 77 | Colette Mchugh | 9 | DAUGHTER | — | Illinois |
| 78 | Thomas J Jr Mchugh | 4 | SON | — | Illinois |
| 79 | Christine Kling | 48 | HEAD | — | Canada-Eng |
| 80 | Richard S Kling | 26 | SON | Pressman | Michigan |
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)