JC
James Crosby — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Crosby across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1907), then head of a 6-person household.
Age 33
b. ~1907
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Crosby |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Motor Trucker |
| Industry | Cartage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Motor Trucker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1907 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Emma Crosby | Spouse | — | 33 | ~1907 |
| Patsy Crosby | Daughter | — | 3 | ~1937 |
| James Crosby | Head | — | 33 | ~1907 |
| Eleanor Crosby | Daughter | — | 8 | ~1932 |
| Gerald Crosby | Son | — | 10 | ~1930 |
| Frieda Crosby | Other | — | 72 | ~1868 |
Census Appearances
1930
Cook, Illinois
Other, age 23
Cook, Illinois · implied b. ~1907 — 46 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crosby |
| Given Name | James |
| Relationship to Head | R |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Chauffeur |
| Industry | Trucking Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 35 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 33
Cook-County, Illinois · implied b. ~1907 — 6 household members
| Surname | Crosby |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Motor Trucker |
| Industry | Cartage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | 8 |
| 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 Crosby across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Crosby
Head · 1940 · age 33 · b. ~1907 · 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-t0627-00984-00461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theresa Basso | 34 | wife | — | Illinois |
| 42 | Matthew Basso | 9 | son | — | Illinois |
| 43 | Fred Geisenheiner | 66 | head | Minister | Wisconsin |
| 44 | Susan Geisenheiner | 67 | wife | — | Illinois |
| 45 | Extra Line Geisenheiner | None | — | — | — |
| 46 | Theodora Perkins | 64 | head | — | Norway |
| 47 | Raymond Perkins | 23 | son | Compositor | Illinois |
| 48 | Theodora Ruback | 34 | daughter | Bookkeeper | Illinois |
| 49 | Betty Jane Ruback | 14 | daughter | — | Illinois |
| 50 | John Azdoojan | 54 | head | Basket Pedlar | Armenia |
| 51 | Vera Azdoojan | 39 | wife | — | Armenia |
| 52 | Paul Azdoojan | 11 | son | — | Illinois |
| 53 | Samuel Azdoojan | 9 | son | — | Illinois |
| 54 | Arthur Azdoojan | 7 | son | — | Illinois |
| 55 | Rosemarie Azdoojan | 4 | daughter | — | Illinois |
| 56 | Giacomo Gentili | 54 | head | Server Labor | Italy |
| 57 | Matilda Gentili | 47 | wife | Server Labor | Italy |
| 58 | Margaret Gentili | 25 | daughter | Hand Work | Illinois |
| 59 | Isabella Gentili | 24 | daughter | Hand Work | Illinois |
| 60 | Bruno Gentili | 23 | son | Assembler | Illinois |
| 61 | Libero Gentili | 19 | son | Assembler | Illinois |
| 62 | Louis Olsen | 28 | head | Owner | Michigan |
| 63 | Evelyn Olsen | 25 | wife | — | Illinois |
| 64 | Florence Olsen | 1 | daughter | — | Illinois |
| 65 | James Crosby THIS PERSON | 33 | head | Motor Trucker | Illinois |
| 66 | Emma Crosby | 33 | wife | — | Illinois |
| 67 | Gerald Crosby | 10 | son | — | Illinois |
| 68 | Eleanor Crosby | 8 | daughter | — | Illinois |
| 69 | Patsy Crosby | 3 | daughter | — | Illinois |
| 70 | Frieda Crosby | 72 | mother | — | Illinois |
| 71 | Maurice Schinitzky | 37 | head | Cobbler | Indiana |
| 72 | Pearl Schinitzky | 33 | wife | — | Russia |
| 73 | Richard Schinitzky | 11 | son | — | Illinois |
| 74 | Barbara Schinitzky | 4 | daughter | — | Illinois |
| 75 | Erwin Crosby | 41 | head | Motor Trucker | Illinois |
| 76 | Elizabeth Crosby | 35 | divorced | — | Illinois |
| 77 | Thomas Crosby | 14 | son | — | Illinois |
| 78 | Max Perlex | 57 | head | Carpenter | Poland |
| 79 | Rose Perlex | 51 | wife | — | Poland |
| 80 | Willard Perlex | 20 | son | Paper Distributor | 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)