CP
Clarence Peterson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Clarence Peterson across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Alma & Carl — first a son (b.~1908), then head of a 4-person household.
Age 22
b. ~1908
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Additional Details | |
| Occupation | Teller |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teller |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1908 |
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 1930 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Robert Peterson | Son | — | 12 | ~1918 |
| Clarence Peterson | Son | — | 22 | ~1908 |
| La Peterson | Daughter | — | 16 | ~1914 |
| Olga Peterson | Head | — | 40 | ~1890 |
Census Appearances
1910
Cook, Illinois
Son, age
Cook, Illinois · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1908 — 4 household members
| Surname | Peterson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Occupation | Teller |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Clarence Peterson across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: mother Alma Peterson (~0.92 confidence) and father Carl Peterson (~0.92 confidence) and father Charles Peterson (~0.92 confidence) and mother Olga Peterson (~0.92 confidence) and mother Olga Peterson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Alma Peterson
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Carl Peterson
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Charles Peterson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Olga Peterson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Olga Peterson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Peterson
Son · 1930 · age 22 · b. ~1908 · Illinois
★ You are viewing this record
Sibling
Robert Peterson
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
La Peterson
Sibling · 1930 · age 16
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:illinoiscensus00reel478:0944)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Stromberg | 57 | Head | Salesman | Sweden |
| 2 | Helma Stromberg | 56 | Wife-H | — | Sweden |
| 3 | Eric Lenfstedt | 47 | Head | Masseur | Sweden |
| 4 | Bertha Lenfstedt | 49 | Wife-H | — | Sweden |
| 5 | Eric Lenfstedt | 21 | Son | — | Illinois |
| 6 | John W. Gustafson | 62 | Head | — | Sweden |
| 7 | Helmar Gustafson | 33 | Son | Club Maker | Illinois |
| 8 | Axel Gustafson | 31 | Son | Club Maker | Illinois |
| 9 | Ernest Gustafson | 51 | Brother | Checker | Sweden |
| 10 | Gustave Larson | 25 | Head | Carpenter | Sweden |
| 11 | Ruth Larson | 19 | Wife-H | — | Massachusetts |
| 12 | Richard Larson | 1 | Son | — | Illinois |
| 13 | Dan Gullbrants | 48 | Head | Cutter | Sweden |
| 14 | Alfhill Gullbrants | 40 | Wife-H | — | Sweden |
| 15 | Olga Peterson | 40 | Head | Cook | Norway |
| 16 | Clarence Peterson THIS PERSON | 22 | Son | Teller | Illinois |
| 17 | La Verne Peterson | 16 | Daughter | — | Illinois |
| 18 | Robert Peterson | 12 | Son | — | Illinois |
| 19 | Emil Holquist | 52 | Head | Window Washer | Sweden |
| 20 | Hulda Holquist | 54 | Wife-H | — | Sweden |
| 21 | Mabel Holquist | 23 | Daughter | Waitress | Illinois |
| 22 | Howard Holquist | 19 | Son | Clerical Work | Illinois |
| 23 | Anna Peterson | 49 | Head-H | Solderer | Illinois |
| 24 | Carl B. Johnson | 33 | Head | Painter | Illinois |
| 25 | Janette Johnson | 23 | Wife-H | — | Minnesota |
| 26 | Carl B. Johnson | 3 | Son | — | Illinois |
| 27 | Arlene Johnson | 1 | Daughter | — | Illinois |
| 28 | Emil Miller | 42 | Head | Moulder | Finland |
| 29 | Helen Miller | 36 | Wife-H | — | Finland |
| 30 | Blanche Miller | 15 | Daughter | — | Wisconsin |
| 31 | Elmer Miller | 12 | Son | — | Wisconsin |
| 32 | Arnold Hultman | 24 | Nephew | Machinist | Finland |
| 33 | Stanley Stankiewicz | 37 | Head | Trimmer | Illinois |
| 34 | Victoria Stankiewicz | 34 | Wife-H | — | Illinois |
| 35 | Stanley Stankiewicz | 14 | Son | — | Illinois |
| 36 | Harry Stankiewicz | 12 | Son | — | Illinois |
| 37 | Irene Stankiewicz | 10 | Daughter | — | Illinois |
| 38 | — | None | — | — | — |
| 39 | Edmund Osowski | 49 | Head | Tailor | Germany |
| 40 | Marie Osowski | 42 | Wife-H | — | Poland |
| 41 | Vivian C. Osowski | 8 | Daughter | — | Illinois |
| 42 | John Koester | 52 | Head | — | Illinois |
| 43 | Christine Koester | 48 | Wife-H | — | Illinois |
| 44 | Howard Koester | 19 | Son | Ticket Taker | Illinois |
| 45 | Gust Crome | 43 | Head | Plumber | Illinois |
| 46 | Jenny Crome | 47 | Wife-H | — | Illinois |
| 47 | Melba Crome | 21 | Daughter | Stenographer | Illinois |
| 48 | Clyde L. Crome | 19 | Son | Printer | Illinois |
| 49 | Ethel Crome | 13 | Daughter | — | Illinois |
| 50 | Rudolph Holmgren | 47 | Head | Hair Spinner | Sweden |
Pedigree Summary
Clarence + 2 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)