JH
James Hayes — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Hayes across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 5-person household.
Age 57
b. ~1883
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Hayes |
| Given Name | James V. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Engineer |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2700 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Engineer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1883 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Mary Hayes | Daughter | — | 12 | ~1928 |
| Mildred Hayes | Daughter | — | 25 | ~1915 |
| James Hayes | Head | — | 57 | ~1883 |
| James Hayes | Son | — | 18 | ~1922 |
| Clara Hayes | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Cook, Illinois
Head, age 38
Cook, Illinois · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Policeman |
| Industry | Stock Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Head, age 48
Cook, Illinois · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Watchman |
| Industry | Car Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 28.00 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Head, age 57
Cook-County, Illinois · implied b. ~1883 — 5 household members
| Surname | Hayes |
| Given Name | James V. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Engineer |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2700 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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 James Hayes across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Hayes
Head · 1940 · age 57 · b. ~1883 · Illinois
★ You are viewing this record
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-t0627-00995-00051)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Donna Mae Spedicker | 10 | Daughter | — | Illinois |
| 2 | Herman Metz | 45 | Brother in law | Laborer | Illinois |
| 3 | John Everitt | 50 | Head | Captain | Minnesota |
| 4 | Mary Everitt | 53 | Wife | — | Illinois |
| 5 | Doris Everitt | 19 | Daughter | Clerk | Illinois |
| 6 | John Everitt | 17 | Son | Laborer | Illinois |
| 7 | John J. West | 52 | Head | Watchman | Illinois |
| 8 | Emma R. West | 52 | Wife | — | Illinois |
| 9 | Arthur Laurell | 52 | Head | Usher | Illinois |
| 10 | Ada Laurell | 52 | Wife | — | New York |
| 11 | Arthur Laurell | 22 | Son | Asst. Machinist | Illinois |
| 12 | Emil Malik | 62 | Head | Hand Finisher | Bohemia |
| 13 | Mary A. Malik | 61 | Wife | — | Bohemia |
| 14 | Jennifer Malik | 25 | Daughter | Clerk | Illinois |
| 15 | James Zeman | 63 | Head | Cutter | Bohemia |
| 16 | Rose Zeman | 62 | Wife | — | Bohemia |
| 17 | Margaret Burke | 67 | Head | — | Pennsylvania |
| 18 | Charles Burke | 47 | Son | Mail Carrier | Illinois |
| 19 | Raymond Burke | 43 | Son | Clerk | Illinois |
| 20 | Myrtle Fallon | 26 | Daughter | Clerk | Illinois |
| 21 | Henry Everson | 54 | Head | Engineer | Sweden |
| 22 | John White | 45 | Son in law | Fireman | Missouri |
| 23 | Alice White | 28 | Daughter | — | Illinois |
| 24 | Josephine Harris | 4 | Granddaughter | — | Illinois |
| 25 | George Hanchet | 56 | Head | Housekeeper | Illinois |
| 26 | Nellie Hanchet | 50 | Wife | Electrician | Illinois |
| 27 | Elmer Iverson | 55 | Head | Proprietor | Denmark |
| 28 | Lottie Iverson | 57 | Wife | — | Denmark |
| 29 | Earl Iverson | 22 | Son | Clerk | Illinois |
| 30 | Robert Lee | 32 | Head | Policeman | Illinois |
| 31 | Catherine Lee | 30 | Wife | — | Illinois |
| 32 | Robert Jr. Lee | 10 | Son | — | Illinois |
| 33 | James V. Hayes THIS PERSON | 57 | Head | Engineer | Ireland |
| 34 | Clara A. Hayes | 50 | Wife | — | Illinois |
| 35 | Mildred F. Hayes | 25 | Daughter | Clerk | Illinois |
| 36 | James Jr. Hayes | 18 | Son | — | Illinois |
| 37 | Mary Hayes | 12 | Daughter | — | Illinois |
| 38 | Albert C. Nelson | 57 | Head | Civil Engineer | Illinois |
| 39 | Woodrow A. Nelson | 25 | Son | Template Maker | Illinois |
| 40 | William Mullen | 65 | Head | Motorman | New York |
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)