HP
Harry Peterson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Harry Peterson across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Ida & Hannah — first a son (b.~1907), then head of a 4-person household.
Age 23
b. ~1907
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Peterson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Painters Helper |
| Industry | Paint Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Painters Helper |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1907 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Edward Peterson | Son | — | 20 | ~1910 |
| Carl Peterson | Son | — | 21 | ~1909 |
| Harry Peterson | Son | — | 23 | ~1907 |
| Hannah Peterson | Head | — | 46 | ~1884 |
Census Appearances
1920
Cook, Illinois
Son, age 13
Cook, Illinois · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 23
Cook, Illinois · implied b. ~1907 — 4 household members
| Surname | Peterson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Painters Helper |
| Industry | Paint Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 33
Cook-County, Illinois · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Yard Master |
| Industry | National Railway |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| 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 Harry Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ida Peterson (~0.92 confidence) and mother Hannah Peterson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ida Peterson
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Hannah Peterson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Peterson
Son · 1930 · age 23 · b. ~1907 · Illinois
★ You are viewing this record
Sibling
Edward Peterson
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Peterson
Sibling · 1930 · 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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
39 people indexed on this census page (ia:1930:illinoiscensus00reel489:0543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Eva A Ehlery | 29 | Wife | — | Tennessee |
| 52 | Greta M Ehlery | 3 | Daughter | — | Illinois |
| 53 | Frank L Naylor | 35 | Head | Engraver | Illinois |
| 54 | Elsie A Naylor | 27 | Wife | — | Michigan |
| 55 | Lloyd H Anderson | 19 | Brother-in-law | Dispatcher | Michigan |
| 56 | Ira J Pitt | 29 | Head | Salesman | Illinois |
| 57 | Marjorie L Pitt | 26 | Wife | Cashier | New York |
| 58 | Carl A Huss | 34 | Head | Milkman | New York |
| 59 | Nettie Huss | 28 | Wife | — | Illinois |
| 60 | George N Gold | 52 | Head | Salesman | Missouri |
| 61 | Leila M Gold | 41 | Wife | — | Indiana |
| 62 | Amelia Stupp | 64 | Head | Servant | Pennsylvania |
| 63 | Josephine Stupp | 40 | Daughter | Stenographer | Illinois |
| 64 | George A Hammond | 29 | Head | Stationary Engr | Illinois |
| 65 | Helen G Hammond | 25 | Wife | — | Illinois |
| 66 | George W Hammond | 3 | Son | — | Illinois |
| 67 | Henry S Nielsen | 41 | Head | Manufacturer | Illinois |
| 68 | Clara Nielsen | 45 | Wife | — | Illinois |
| 69 | Emma G Caldwell | 52 | Mother-in-law | — | Illinois |
| 70 | Kathryn L Caldwell | 24 | Daughter | Clerk | Missouri |
| 71 | Edward S Caldwell | 23 | Son | Underwriter | Missouri |
| 72 | Joseph Caldwell | 20 | Son | Clerk | Missouri |
| 73 | Walter R Poetsch | 39 | Head | Designer | Missouri |
| 74 | Charlotte A Poetsch | 26 | Wife | — | Illinois |
| 75 | John C Anderson | 30 | Head | Broker | Illinois |
| 76 | Robert C Anderson | 35 | Brother | Asst Broker | Illinois |
| 77 | William L Hays | 39 | Head | Jeweler | Pennsylvania |
| 78 | Hazel B Hays | 33 | Wife | Bk Keeper | Illinois |
| 79 | Virginia Marshman | 19 | Sister-in-law | Stenographer | Illinois |
| 80 | Hannah Peterson | 46 | Head | Laundress | Sweden |
| 81 | Harry Peterson THIS PERSON | 23 | Son | Painters Helper | Illinois |
| 82 | Carl J Peterson | 21 | Son | Chauffeur | Illinois |
| 83 | Edward Peterson | 20 | Son | Asst Pressman | Illinois |
| 84 | David N Rose | 61 | Head | Manager | Canada English |
| 85 | Mary E Rose | 57 | Wife | — | Illinois |
| 86 | Graham G Olson | 24 | Head | Clerk | Illinois |
| 87 | Edna L Olson | 20 | Wife | Stenographer | New Jersey |
| 88 | Anna L Boyd | 43 | Head | Stenographer | Illinois |
| 89 | Freda Lenow | 48 | Sister | — | Illinois |
Related Census Records
Pedigree Summary
Harry + 2 siblings
Gen 1 · 2 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)