CP
Clara Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kane-County, Illinois
Our Model Tree links this Clara Peterson across the 1920, 1930 and 1940 US Censuses in Kane-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 3-person household.
Age 67
b. ~1873
Female
Head
Born: Sweden
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Kane-County, Illinois |
| Surname | Peterson |
| Given Name | Clara |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Aurora City |
| 1935 Residence (County) | Kane |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Aurora City |
| Est. Birth Year | ~1873 |
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 Clara | Age | Birth yr |
|---|---|---|---|---|
| Paul Peterson | Son | — | 40 | ~1900 |
| Herbert Peterson | Son | — | 26 | ~1914 |
| Clara Peterson | Head | — | 67 | ~1873 |
Census Appearances
1920
Kane, Illinois
Spouse, age 47
Kane, Illinois · implied b. ~1873 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Bookkeeper |
| Industry | Children's Home |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Kane, Illinois
Other, age 57
Kane, Illinois · implied b. ~1873 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clara |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1892 |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Kane-County, Illinois
Head, age 67
Kane-County, Illinois · implied b. ~1873 — 3 household members
| Surname | Peterson |
| Given Name | Clara |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Aurora City |
| 1935 Residence (County) | Kane |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Clara 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
Clara Peterson
Head · 1940 · age 67 · b. ~1873 · 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 — Kane-County, Illinois
Open full size
1940 US Federal Census — Kane-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00819-00031)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Evelyn Kahn | 17 | daughter | — | Illinois |
| 42 | Beverly Ann Kahn | 8 | daughter | — | Illinois |
| 43 | Clarence Frisch | 39 | head | Lithographer | Illinois |
| 44 | Theresa Frisch | 30 | wife | — | Illinois |
| 45 | E. W. Frost | 50 | head | Electrician | Illinois |
| 46 | Pearl Frost | 48 | wife | — | Illinois |
| 47 | Carol Jane Frost | 17 | daughter | — | Illinois |
| 48 | Roscoe Nims | 42 | head | Laborer | Iowa |
| 49 | Velma Nims | 35 | wife | — | Iowa |
| 50 | Donald Nims | 14 | son | Newsboy | Illinois |
| 51 | Elmer W. Hooper | 53 | head | Pipe Fitter | Illinois |
| 52 | Margaret Hooper | 45 | wife | — | Illinois |
| 53 | Clara Peterson THIS PERSON | 67 | head | — | Sweden |
| 54 | Paul Peterson | 40 | son | Die Caster | Illinois |
| 55 | Herbert Peterson | 26 | son | Salesman | Illinois |
| 56 | Alfred Heinzelmann | 76 | head | Clerk | Germany |
| 57 | S. E. Brown | 37 | head | Maint. Supt. | Nebraska |
| 58 | Estelle Brown | 32 | wife | — | Missouri |
| 59 | Marjorie Brown | 17 | daughter | Clerk | Nebraska |
| 60 | Howard Brown | 5 | son | — | Nebraska |
| 61 | H. P. Banker | 70 | head | — | Illinois |
| 62 | Mary Banker | 62 | wife | — | Germany |
| 63 | Mina Headley | 27 | head | Clerk | Illinois |
| 64 | Shirley Headley | 22 | wife | — | Illinois |
| 65 | Alvin Jr. Headley | 2 | son | — | Illinois |
| 66 | John Higgins | 42 | head | Clerk | Scotland |
| 67 | Elizabeth Higgins | 36 | wife | — | Scotland |
| 68 | Janet Higgins | 12 | daughter | — | Illinois |
| 69 | Janet Galbreath | 58 | mother-in-law | Packer | Scotland |
| 70 | Sarah Ness | 75 | head | — | Illinois |
| 71 | Frank Raicher | 46 | head | Off. Clerk | Illinois |
| 72 | Audrey Raicher | 44 | wife | — | Illinois |
| 73 | Everett Head | 27 | head | Salesman | Illinois |
| 74 | Viola Head | 30 | wife | — | Illinois |
| 75 | Velma Head | 1 | son | — | Illinois |
| 76 | Wardell Griggs | 15 | son | — | Illinois |
| 77 | A. W. Anderson | 49 | head | Bookkeeper | Illinois |
| 78 | Patsy Anderson | 13 | daughter | — | Illinois |
| 79 | Lulu Schlin|Schlu | 15 | niece | — | Illinois |
| 80 | Ray Averne | 42 | head | Salesman | 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)