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John Doyle — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Doyle across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Doyle |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago City |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Stationary Engineer |
| Industry | Crest Hotel |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 1700 |
| Highest Grade | No 8 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Stationary Engineer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1891 |
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 |
|---|---|---|---|---|
| John Doyle | Head | — | 49 | ~1891 |
| Agnes Mathews | Other | — | 83 | ~1857 |
| Robert Doyle | Son | — | 19 | ~1921 |
| William Doyle | Son | — | 16 | ~1924 |
| Lorene Doyle | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Cook, Illinois
Head, age 35
Cook, Illinois · implied b. ~1885 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doyle |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1905 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Steamfitter |
| Industry | Heating Supply |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Head, age 42
Cook, Illinois · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doyle |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 65 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Head, age 49
Cook-County, Illinois · implied b. ~1891 — 5 household members
| Surname | Doyle |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago City |
| Naturalization Status | Naturalized |
| Occupation | Stationary Engineer |
| Industry | Crest Hotel |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 1700 |
| Highest Grade | No 8 |
| 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 John Doyle across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Doyle
Head · 1940 · age 49 · b. ~1891 · 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-t0627-00941-00487)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | August Spulgen | 65 | Brother | — | Lithuania |
| 2 | Richard Mendelson | 32 | Head | Truck Driver | Illinois |
| 3 | Viola Mendelson | 29 | Wife | — | Illinois |
| 4 | Donald Mendelson | 8 | Son | — | Illinois |
| 5 | Julius Mendelson | 28 | Brother | Truck Driver | Illinois |
| 6 | Peter Costa | 59 | Head | Bricklayer | Italy |
| 7 | Mary E. Costa | 46 | Wife | Manager | Italy |
| 8 | Alice Costa | 30 | Daughter | — | Italy |
| 9 | Flora Costa | 24 | Daughter | Office Work | Illinois |
| 10 | Luciani Costa | 17 | Daughter | — | Italy |
| 11 | John W. Each | 47 | Head | Pattern Maker | Illinois |
| 12 | Lillian Each | 48 | Wife | — | Pennsylvania |
| 13 | Lois Each | 15 | Daughter | — | Illinois |
| 14 | John Jr. Each | 9 | Son | — | Illinois |
| 15 | Eugene Mackey | 36 | Head | Foreman | Pennsylvania |
| 16 | Ethel Mackey | 31 | Wife | — | Illinois |
| 17 | Norine Mackey | 7 | Daughter | — | Illinois |
| 18 | David Mackey | 1 | Son | — | Illinois |
| 19 | Louise Horozthe | 29 | Lodger | New Worker | Ohio |
| 20 | Albert Mori | 39 | Head | Scale Carpenter | Kansas |
| 21 | Nellie Mori | 31 | Wife | — | Pennsylvania |
| 22 | Jeremia Mori | 23 | Brother | Machine Operator | Michigan |
| 23 | Week Ends Enumeration Of April 4 And Starts Of April 5Th. | None | — | — | — |
| 24 | William Lavigne | 23 | Head | Sampler | Illinois |
| 25 | Catherine Lavigne | 19 | Wife | — | Illinois |
| 26 | Mary C. Lavigne | 1 | Daughter | — | Illinois |
| 27 | John Kalchbrenner | 31 | Head | Trimmer | Illinois |
| 28 | Luella Kalchbrenner | 26 | Wife | — | Illinois |
| 29 | Joan Kalchbrenner | 7 | Daughter | — | Illinois |
| 30 | Arline Kalchbrenner | 2 | Daughter | — | Illinois |
| 31 | Edward Piontek | 34 | Head | Clerk | Illinois |
| 32 | Sally Piontek | 30 | Wife | — | Illinois |
| 33 | Raymond Piontek | 9 | Son | — | Illinois |
| 34 | John Doyle THIS PERSON | 49 | Head | Stationary Engineer | Ireland |
| 35 | Lorene Doyle | 46 | Wife | — | Illinois |
| 36 | Robert Doyle | 19 | Son | New Worker | Illinois |
| 37 | William Doyle | 16 | Son | — | Illinois |
| 38 | Agnes Mathews | 83 | Mother-in-law | — | Michigan |
| 39 | Louis Binda | 36 | Head | Mechanic | Minnesota |
| 40 | Esther Binda | 33 | Wife | — | Illinois |
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)