JH
James Hayes — 1940 US Census Record
Model Tree available1940 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), with identified parents James & Mary — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Hayes |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Maintenance |
| Industry | Sign Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1250 |
| Highest Grade | H 2 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Maintenance |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1910 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Patricia Hayes | Daughter | — | 4 | ~1936 |
| James Hayes | Head | — | 30 | ~1910 |
| James Hayes | Son | — | 8 | ~1932 |
| Bernetta Hayes | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 21
Cook, Illinois · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 30
Cook-County, Illinois · implied b. ~1910 — 4 household members
| Surname | Hayes |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Maintenance |
| Industry | Sign Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1250 |
| Highest Grade | H 2 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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. Identified parents: father James Hayes (~0.92 confidence) and mother Mary Hayes (~0.92 confidence) and father James Hayes (~0.92 confidence) and mother Nellie Hayes (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Hayes
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Mary Hayes
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
James Hayes
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Nellie Hayes
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Hayes
Head · 1940 · age 30 · b. ~1910 · 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-t0627-00982-00764)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Adolph Rees | 28 | Head | Packing Clerk | Illinois |
| 2 | Margaret D. Rees | 27 | Wife | — | Illinois |
| 3 | Helen J. Rees | 4 | Daughter | — | Illinois |
| 4 | Shirley Rees | 2 | Daughter | — | Illinois |
| 5 | William Rees | 0 | Son | — | Illinois |
| 6 | Michael Comiskey | 51 | Head | Packing Clerk | Scotland |
| 7 | Agnes Comiskey | 47 | Wife | Janitress | Scotland |
| 8 | Beatrice Comiskey | 21 | Daughter | Stenographer | Scotland |
| 9 | John Comiskey | 18 | Son | — | Scotland |
| 10 | Thomas Comiskey | 13 | Son | — | Illinois |
| 11 | Rose Mcmahon | 66 | Head | — | Illinois |
| 12 | Rose M. Mcmahon | 38 | Daughter | Switchboard | Illinois |
| 13 | Robert Mcmahon | 32 | Son | Clerk Coal | Illinois |
| 14 | Alice J. Mcmahon | 26 | Daughter | Copywriter | Illinois |
| 15 | Peter J. Kroll | 49 | Head | Proprietor | Missouri |
| 16 | Gertrude Kroll | 47 | Wife | — | Wisconsin |
| 17 | Margaret Kroll | 21 | Daughter | File Clerk | Wisconsin |
| 18 | Jack Kroll | 18 | Son | — | Wisconsin |
| 19 | George Meyer | 52 | Head | Watchman | Wisconsin |
| 20 | Anna Meyer | 61 | Wife | — | Wisconsin |
| 21 | Richard Meyer | 49 | Brother | Salesman | Wisconsin |
| 22 | Sam Miller | 47 | Head | Barber | Austria |
| 23 | Marie Miller | 24 | Wife | — | Poland |
| 24 | Samuel Miller | 13 | Son | — | Illinois |
| 25 | Mary Colwell | 78 | Head | — | Illinois |
| 26 | William Colwell | 80 | Brother | — | Illinois |
| 27 | Grace Butler | 40 | Niece | — | Illinois |
| 28 | John Daly | 64 | Head | — | Ireland |
| 29 | Catherine Daly | 64 | Wife | — | Ireland |
| 30 | Catherine Daly | 33 | Daughter | Stenographer | Illinois |
| 31 | Daniel Daly | 28 | Son | Book Keeper | Illinois |
| 32 | Bert Daly | 23 | Son | Bell Boy | Illinois |
| 33 | Frank Brunson | 35 | Head | Foreman | Illinois |
| 34 | Bernice Brunson | 32 | Wife | — | Illinois |
| 35 | James Brunson | 12 | Son | — | Illinois |
| 36 | Maridel Brunson | 10 | Daughter | — | Illinois |
| 37 | James Hayes THIS PERSON | 30 | Head | Maintenance | Illinois |
| 38 | Bernetta Hayes | 29 | Wife | — | Illinois |
| 39 | James A. Hayes | 8 | Son | — | Illinois |
| 40 | Patricia A. Hayes | 4 | Daughter | — | Illinois |
Pedigree Summary
James
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)