JD
John Doherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Doherty across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Janitor |
| Industry | Apt Bldg |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Janitor |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1892 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Doherty | Daughter | — | 5 | ~1935 |
| John Doherty | Head | — | 48 | ~1892 |
| Bridget Doherty | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Cook, Illinois
Other, age 26
Cook, Illinois · implied b. ~1894 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1914 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Conductor |
| Industry | Street Cars |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Other, age 37
Cook, Illinois · implied b. ~1893 — 26 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | roomer |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1922 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | packer |
| Industry | coffee mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Head, age 48
Cook-County, Illinois · implied b. ~1892 — 3 household members
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Janitor |
| Industry | Apt Bldg |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 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 John Doherty across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Doherty
Head · 1940 · age 48 · b. ~1892 · 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
39 people indexed on this census page (nara:1940:m-t0627-00934-00163)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gertrude Rossiter | 59 | Daughter | — | Indiana |
| 42 | Max Segal | 40 | Head | Lawyer | Romania |
| 43 | Bessell Segal | 32 | Wife | — | Wisconsin |
| 44 | Melvin Segal | 2 | Son | — | Illinois |
| 45 | Fannie Hall | 66 | Head | — | Michigan |
| 46 | Eliza D. Hall | 53 | Sister | — | Illinois |
| 47 | Edna Howell | 52 | Head | Agent | Indiana |
| 48 | Violet Howell | 51 | Wife | — | Tennessee |
| 49 | John Doherty THIS PERSON | 48 | Head | Janitor | Ireland |
| 50 | Bridget Doherty | 48 | Wife | — | Ireland |
| 51 | Mary Doherty | 5 | Daughter | — | Illinois |
| 52 | Daniel Brown | 37 | Head | Buyer | Illinois |
| 53 | Sadie Brown | 30 | Wife | — | Illinois |
| 54 | Wayne Brown | 4 | Daughter | — | Illinois |
| 55 | Dora Brown | 58 | Mother-in-law | — | Russia |
| 56 | Morris Rubinson | 49 | Head | Salesman | Russia |
| 57 | Fannie Rubinson | 48 | Wife | — | Russia |
| 58 | Adolph Rubinson | 28 | Son | Lawyer | Illinois |
| 59 | Thelma Rubinson | 26 | Son | — | Illinois |
| 60 | Walter Rubinson | 21 | Son | — | Illinois |
| 61 | Louis Moser | 41 | Head | Salesman | Nebraska |
| 62 | Eleanor Moser | 41 | Wife | — | Nebraska |
| 63 | Nicholas Bohling | 31 | Head | Lawyer | Illinois |
| 64 | Mary Bohling | 22 | Wife | — | Illinois |
| 65 | Henry Regimers | 51 | Head | Dist. Sup. | California |
| 66 | Catherine Regimers | 53 | Wife | — | Iowa |
| 67 | Michael Vail | 80 | Head | — | New York |
| 68 | Frances Vail | 70 | Wife | — | Indiana |
| 69 | Frank Vail | 39 | Son | Clerk | Illinois |
| 70 | Sereno Streeter | 62 | Head | President | Michigan |
| 71 | Annie Streeter | 62 | Wife | — | New York |
| 72 | Morris Walliser | 62 | Head | Janitor | Wales |
| 73 | Emma Walliser | 64 | Wife | — | Sweden |
| 74 | Louis Levinson | 56 | Head | Prop. Mfg | Germany |
| 75 | Tillie Levinson | 53 | Wife | — | Illinois |
| 76 | Florence Levinson | 24 | Daughter | Teacher | Illinois |
| 77 | Harold Rune | 40 | Head | Builder | Illinois |
| 78 | Clara Rune | 38 | Wife | — | Illinois |
| 79 | Dorothy Rune | 18 | Son | — | 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)