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James Mann — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Mann across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Male
Head
Born: Greece
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Mann |
| Given Name | James A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Greece |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Cook |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1350 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Greece |
| Birthplace (normalized) | greece |
| Occupation | Cook |
| Township / Ward | Chicago |
| Est. Birth Year | ~1888 |
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 |
|---|---|---|---|---|
| James Mann | Head | — | 52 | ~1888 |
| Mildred Mann | Spouse | — | 35 | ~1905 |
| James Mann | Son | — | 3 | ~1937 |
| Angeline Mann | Daughter | — | 15 | ~1925 |
| David Mann | Son | — | 6 | ~1934 |
| Anthony Mann | Son | — | 14 | ~1926 |
Census Appearances
1930
Cook, Illinois
Head, age 41
Cook, Illinois · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Greece |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 34 |
| Father's Birthplace | Greece |
| Mother's Birthplace | Greece |
| Occupation | Proprietor |
| Industry | Restaurant |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Greek |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Greece |
| Birthplace (normalized) | greece |
1940
Cook-County, Illinois
Head, age 52
Cook-County, Illinois · implied b. ~1888 — 6 household members
| Surname | Mann |
| Given Name | James A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Greece |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Cook |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1350 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Greece |
| Birthplace (normalized) | greece |
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 Mann across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mann
Head · 1940 · age 52 · b. ~1888 · 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-t0627-00981-00892)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dominic Camillo | 45 | Head | Painter | Italy |
| 42 | Concetta Camillo | 38 | Wife | — | Italy |
| 43 | Nicolas Camillo | 15 | Son | — | Illinois |
| 44 | Anthony Camillo | 13 | Son | — | Illinois |
| 45 | Wallace L. Eagles | 73 | Head | Office-Clerk | Ohio |
| 46 | Julia S. Eagles | 70 | Wife | Sales-Clerk | Illinois |
| 47 | Margaret J. Leone | 44 | Head | — | Illinois |
| 48 | John E. Leone | 25 | Son | Office-Clerk | Illinois |
| 49 | Timothy J. O'Leary | 46 | Head | Telephone Collector | Illinois |
| 50 | Timothy John O'Leary | 19 | Son | Painters-Helper | Illinois |
| 51 | Mary E. O'Leary | 13 | Daughter | — | Illinois |
| 52 | Patricia N. O'Leary | 7 | Daughter | — | Illinois |
| 53 | Anne O'Leary | 43 | Wife | — | Illinois |
| 54 | Michael J. Nallen | 26 | Son-in-law | Checker | Free State |
| 55 | Margaret Nallen | 21 | Daughter | — | Illinois |
| 56 | Marylin Nallen | 1 | Daughter | — | Illinois |
| 57 | Josephine O'Leary | 44 | Head | Conductor | Illinois |
| 58 | Hilma E. O'Leary | 35 | Wife | — | Illinois |
| 59 | Bernice V. O'Leary | 16 | Daughter | — | Illinois |
| 60 | Vivian L. O'Leary | 11 | Daughter | — | Illinois |
| 61 | John A. Talashek | 43 | Head | Foreman | Illinois |
| 62 | Esther M. Talashek | 38 | Wife | — | Michigan |
| 63 | Raymond J. Talashek | 7 | Son | — | Illinois |
| 64 | Clement J. Talashek | 6 | Son | — | Illinois |
| 65 | Joseph V. Gilberto | 57 | Head | Off-Presser | Italy |
| 66 | Ada Gilberto | 54 | Wife | — | Italy |
| 67 | Marian C. Gilberto | 24 | Daughter | Specifier | Illinois |
| 68 | Angelo J. Gilberto | 22 | Son | Truck-Driver | Illinois |
| 69 | Jerome J. Cambria | 31 | Head | Laundry-Driver | Illinois |
| 70 | Dorothy E. Cambria | 27 | Wife | — | Illinois |
| 71 | Kenneth J. Cambria | 4 | Son | — | Illinois |
| 72 | Donald S. Cambria | 3 | Son | — | Illinois |
| 73 | Margaret Rush | 82 | Head | — | Free State |
| 74 | Mathilda Marinos | 29 | Head | Bookkeeper | Illinois |
| 75 | James A. Mann THIS PERSON | 52 | Head | Cook | Greece |
| 76 | Mildred Mann | 35 | Wife | — | Missouri |
| 77 | Angeline Mann | 15 | Daughter | — | Missouri |
| 78 | Anthony Mann | 14 | Son | Retail-Grocer | Illinois |
| 79 | David Mann | 6 | Son | — | Illinois |
| 80 | James Mann | 3 | 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)