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James Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Peterson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Peterson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Tool & Die Maker |
| Industry | Steel Pulleys |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1716 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Tool & Die Maker |
| Township / Ward | Chicago |
| Est. Birth Year | ~1889 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Peterson | Daughter | — | 16 | ~1924 |
| James Peterson | Head | — | 51 | ~1889 |
| Jennie Peterson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Cook, Illinois
Head, age 30
Cook, Illinois · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1904 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Tool Maker |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | R |
| Birth Country | Norway |
| Year of Naturalization | 1911 |
| Birthplace (normalized) | norway |
1930
Cook, Illinois
Head, age 42
Cook, Illinois · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 23 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Manager |
| Industry | Delicatessen |
| Class of Worker | O |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Value / Rent | 8000 |
| Radio Set | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Cook-County, Illinois
Head, age 51
Cook-County, Illinois · implied b. ~1889 — 3 household members
| Surname | Peterson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Tool & Die Maker |
| Industry | Steel Pulleys |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1716 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Peterson 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 Peterson
Head · 1940 · age 51 · b. ~1889 · 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-t0627-00995-00376)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ellen Mccarthy | 36 | Wife | — | Illinois |
| 42 | Louis Schneider | 26 | Head | Salesman | Michigan |
| 43 | Eleanor Schneider | 24 | Wife | — | Alabama |
| 44 | Michael Cosaletto | 42 | Head | Mdse. Buyer | Italy |
| 45 | Theresa Cosaletto | 42 | Wife | — | Illinois |
| 46 | Rosemary Cosaletto | 16 | Daughter | — | Illinois |
| 47 | Dorothy Cosaletto | 15 | Daughter | — | Illinois |
| 48 | James Cosaletto | 9 | Son | — | Illinois |
| 49 | Dolores Cosaletto | 4 | Daughter | — | Illinois |
| 50 | Robert Cosaletto | 3 | Son | — | Illinois |
| 51 | Louis Erhard | 34 | Head | Salesman | Illinois |
| 52 | Edith Erhard | 38 | Wife | — | Michigan |
| 53 | Arthur Erhard | 3 | Son | — | Illinois |
| 54 | James Peterson THIS PERSON | 51 | Head | Tool & Die Maker | Norway |
| 55 | Jennie Peterson | 48 | Wife | Masseuse | Norway |
| 56 | Dorothy Jane Peterson | 16 | Daughter | — | Illinois |
| 57 | Henry Just | 60 | Head | Battery Builder | D. C. |
| 58 | Cora Just | 60 | Wife | — | Virginia |
| 59 | Thomas Pearce | 69 | Head | Laborer | England |
| 60 | Marion Pearce | 62 | Wife | — | England |
| 61 | Elsie Pearce | 35 | Daughter | Comptometer Oper. | England |
| 62 | Winifred Pearce | 28 | Daughter | Stenographer | Illinois |
| 63 | Charles A. Jones | 70 | Head | Asst. Civil Engineer | Indiana |
| 64 | Edith L. Jones | 63 | Wife | — | Illinois |
| 65 | Walter S. Jones | 40 | Son | — | Illinois |
| 66 | Anthony Anticevich | 35 | Head | Hand Trucker | Illinois |
| 67 | Mathilda Anticevich | 37 | Wife | — | Illinois |
| 68 | Jane Anticevich | 12 | Daughter | — | Illinois |
| 69 | Theresa Anticevich | 9 | Daughter | — | Illinois |
| 70 | Mathilda M. Anticevich | 4 | Daughter | — | Illinois |
| 71 | Joseph L. Jr. Ortengo | 58 | Head | — | Italy |
| 72 | Mary Ortengo | 58 | Wife | — | Italy |
| 73 | John Ortengo | 33 | Son | Shipping Clerk | Illinois |
| 74 | Millie Ortengo | 29 | Daughter | Wrapper | Illinois |
| 75 | Salvatore Ortengo | 27 | Son | Cloth Sponger | Illinois |
| 76 | Joseph O. Jr. Ortengo | 25 | Son | Cloth Sponger | Illinois |
| 77 | Victor Ortengo | 21 | Son | Cloth Sponger | Illinois |
| 78 | Louise Ortengo | 19 | Daughter | New Worker | Illinois |
| 79 | Maria Ortengo | 17 | Daughter | — | Illinois |
| 80 | Henry W. Sr. Pfaff | 51 | Head | Prop-Salesman | Hungary |
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)