EP
Evelyn Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Evelyn Peterson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents William & William — first a daughter (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Peterson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Dairy |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1040 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Bookkeeper |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1912 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Evelyn | Age | Birth yr |
|---|---|---|---|---|
| William Peterson | Head | — | 60 | ~1880 |
| Evelyn Peterson | Daughter | — | 28 | ~1912 |
| Carolyn Peterson | Daughter | — | 21 | ~1919 |
| Dorothy Peterson | Daughter | — | 31 | ~1909 |
Census Appearances
1920
Winnebago, Illinois
Daughter, age 7
Winnebago, Illinois · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petterson |
| Given Name | Evelyn M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Norway |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Daughter, age 17
Winnebago, Illinois · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petterson |
| Given Name | Evelyn M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Norway |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Daughter, age 28
Winnebago-County, Illinois · implied b. ~1912 — 4 household members
| Surname | Peterson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Occupation | Bookkeeper |
| Industry | Dairy |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1040 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Evelyn Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Petterson (~0.92 confidence) and father William Peterson (~0.92 confidence) and mother Eva Petterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Petterson
b. ~1880
Source father
● Household
· direct · ~0.92
Father
William Peterson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Eva Petterson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Evelyn Peterson
Daughter · 1940 · age 28 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Dorothy Peterson
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carolyn Peterson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00914-00289)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fred Sorenson | 1 | Son | — | Illinois |
| 42 | Glenn Wardrip | 31 | Head | Supervisor | Missouri |
| 43 | Dorothy Wardrip | 30 | Wife | — | Missouri |
| 44 | Barbara Jean Wardrip | 9 | Daughter | — | Illinois |
| 45 | Hazel Anger | 48 | Head | Part Owner | Wisconsin |
| 46 | Jack Anger | 18 | Son | — | Illinois |
| 47 | Bessie Yandell | 54 | Lodger | Nursing | Illinois |
| 48 | Glenn Westy | 58 | Head | Carpenter | Illinois |
| 49 | Mabel Westy | 58 | Wife | — | Illinois |
| 50 | Orion Huffington | 55 | Head | Contractor | Illinois |
| 51 | Ada Huffington | 53 | Wife | — | Illinois |
| 52 | Maurine Huffington | 30 | Daughter | Secretary | Illinois |
| 53 | Ella Wolf | 75 | Mother-in-law | — | Illinois |
| 54 | Robert A. White | 54 | Head | Salesman | Iowa |
| 55 | Clarice White | 54 | Wife | — | Iowa |
| 56 | Robert Jr. White | 14 | Son | — | Missouri |
| 57 | June Bornor | 46 | Head | Teacher | Michigan |
| 58 | Erma Bornor | 47 | Wife | — | Kansas |
| 59 | John Bornor | 19 | Son | — | Illinois |
| 60 | Richard Bornor | 17 | Son | — | Illinois |
| 61 | Clyde Alwood | 45 | Head | Salesman | Ohio |
| 62 | Amy Alwood | 43 | Wife | — | Indiana |
| 63 | Jean Alwood | 19 | Daughter | — | Illinois |
| 64 | C. Wallace Duncan | 48 | Head | Optometrist | Missouri |
| 65 | Lelia Duncan | 49 | Wife | — | Iowa |
| 66 | William (At) Duncan | 19 | Son | — | Illinois |
| 67 | Betty Duncan | 17 | Daughter | — | Illinois |
| 68 | Richard M. Mott | 38 | Head | Acting Manager | Illinois |
| 69 | Margaret Mott | 36 | Wife | — | Illinois |
| 70 | Janice Mott | 12 | Daughter | — | Illinois |
| 71 | James Mott | 10 | Son | — | Illinois |
| 72 | Richard Mott | 4 | Son | — | Illinois |
| 73 | Robert Mott | 4 | Son | — | Illinois |
| 74 | Clyde Oliver | 47 | Head | Recorder | Illinois |
| 75 | Goldie Oliver | 47 | Wife | — | Illinois |
| 76 | John Oliver | 13 | Son | — | Illinois |
| 77 | William C. Peterson | 60 | Head | Superintendent | Norway |
| 78 | Dorothy Peterson | 31 | Daughter | — | Illinois |
| 79 | Evelyn Peterson THIS PERSON | 28 | Daughter | Bookkeeper | Illinois |
| 80 | Carolyn Peterson | 21 | Daughter | Stenographer | Illinois |
Pedigree Summary
Evelyn + 2 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)