WP
Walter Peterson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Walter Peterson across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Berger & Tillie — first a son (b.~1915), then head of a 9-person household.
Age 15
b. ~1915
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Peterson |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | River Grove Village |
| Est. Birth Year | ~1915 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Walter | Age | Birth yr |
|---|---|---|---|---|
| Richard Peterson | Son | — | 21 | ~1909 |
| Ethel Peterson | Daughter | — | 6 | ~1924 |
| Loretta Peterson | Daughter | — | 17 | ~1913 |
| Christian Peterson | Head | — | 47 | ~1883 |
| Daisy Peterson | Daughter | — | 13 | ~1917 |
| Evelyn Peterson | Daughter | — | 19 | ~1911 |
| Harold Peterson | Son | — | 4 | ~1926 |
| Walter Peterson | Son | — | 15 | ~1915 |
| Lorraine Peterson | Daughter | — | 10 | ~1920 |
Census Appearances
1920
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 15
Cook, Illinois · implied b. ~1915 — 9 household members
| Surname | Peterson |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 25
Cook-County, Illinois · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Salesman |
| Industry | Stations |
| Class of Worker | PW |
| Hours Worked | 39 |
| Highest Grade | H 4 |
| 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 Walter Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Berger Petersen (~0.92 confidence) and mother Tillie Petersen (~0.92 confidence) and father Christian Peterson (~0.92 confidence) and mother Anna Peterson (~0.92 confidence) and mother Florence Peterson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Berger Petersen
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Tillie Petersen
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
Christian Peterson
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Anna Peterson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Florence Peterson
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Walter Peterson
Son · 1930 · age 15 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
Daisy Peterson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Peterson
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Peterson
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Peterson
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Peterson
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Peterson
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Peterson
Sibling · 1930 · age 6
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel501:0651)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Roll | 33 | Head | Painter | Oklahoma |
| 2 | Bessie Roll | 42 | Wife | Assembling | Ohio |
| 3 | John Ross | 45 | Head | Chef | Ohio |
| 4 | Bessie Ross | 42 | Wife | — | Alabama |
| 5 | Charles La Duke | 27 | Boarder | Chauffeur | Michigan |
| 6 | Isabel La Duke | 26 | Boarder | — | Michigan |
| 7 | Raymond Hauch | 42 | Head | Laborer | Illinois |
| 8 | Helen Hauch | 31 | Wife | — | Illinois |
| 9 | Lorraine Hauch | 9 | Daughter | — | Illinois |
| 10 | Herman Hauch | 65 | Father | — | Germany |
| 11 | Walter Stadler | 31 | Head | — | Illinois |
| 12 | Mary Stadler | 34 | Wife | Housework | Free State Irish |
| 13 | Ellen Netterville | 43 | Head | Housework | Illinois |
| 14 | Michael Domer | 30 | Boarder | Laborer | Illinois |
| 15 | Patrick J. Guffney | 56 | Head | Waiter | Illinois |
| 16 | Irene Guffney | 30 | Daughter | — | Illinois |
| 17 | Frederick Maroty | 36 | Head | Brick Layer | Germany |
| 18 | Anna Maroty | 30 | Wife | — | Norway |
| 19 | Ludwig Rau | 34 | Head | Plasterer | Germany |
| 20 | Mildred Rau | 35 | Wife | Machine Operator | Germany |
| 21 | Amos Lark | 32 | Head | Chauffeur | New York |
| 22 | Sylvia Lark | 31 | Wife | — | Illinois |
| 23 | Christian Peterson | 47 | Head | Carpenter | Illinois |
| 24 | Richard Peterson | 21 | Son | Laborer | Illinois |
| 25 | Evelyn Peterson | 19 | Daughter | Machine Operator | Illinois |
| 26 | Loretta Peterson | 17 | Daughter | — | Illinois |
| 27 | Walter Peterson THIS PERSON | 15 | Son | — | Illinois |
| 28 | Daisy Peterson | 13 | Daughter | — | Illinois |
| 29 | Lorraine Peterson | 10 | Daughter | — | Illinois |
| 30 | Ethel Peterson | 6 | Daughter | — | Illinois |
| 31 | Harold Peterson | 4 | Son | — | Illinois |
| 32 | Michael Ramonovith | 38 | Head | Laborer | Russia |
| 33 | Grace Ramonovith | 28 | Wife | — | Pennsylvania |
| 34 | Sophia Ramonovith | 9 | Daughter | — | Illinois |
| 35 | Richard Ramonovith | 6 | Son | — | Illinois |
| 36 | Stanley Pikurski | 34 | Head | Laborer | Poland |
| 37 | Julia Pikurski | 32 | Wife | — | Poland |
| 38 | Anna Pikurski | 11 | Daughter | — | Illinois |
| 39 | Felix Pikurski | 8 | Son | — | Illinois |
| 40 | Stella Pikurski | 6 | Daughter | — | Illinois |
| 41 | George Schlesser | 25 | Head | Solicitor | Illinois |
| 42 | Ella Schlesser | 23 | Wife | — | Illinois |
| 43 | Mary Schlesser | 2 | Daughter | — | Illinois |
| 44 | Robert Schlesser | 1 | Son | — | Illinois |
| 45 | Charles Stephens | 74 | Head | Shipping Clerk | Illinois |
| 46 | Alvis E. Stephens | 65 | Wife | — | Alabama |
| 47 | Carl A. Erickson | 42 | Head | Chemist | Norway |
| 48 | Clara Erickson | 30 | Wife | — | Illinois |
| 49 | Thomas Conroy | 46 | Head | Traveler | Indiana |
| 50 | Anna M. Conroy | 52 | Wife | — | Illinois |
Related Census Records
Pedigree Summary
Walter + 7 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)