AP
Alfred Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Alfred Peterson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 5-person household.
Age 52
b. ~1888
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Electrician |
| Industry | Steel mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2080 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Electrician |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1888 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alfred | Age | Birth yr |
|---|---|---|---|---|
| Alfred Peterson | Head | — | 52 | ~1888 |
| Jane Peterson | Daughter | — | 16 | ~1924 |
| Ralph Peterson | Son | — | 21 | ~1919 |
| Lillian Peterson | Spouse | — | 49 | ~1891 |
| Raymond Peterson | Son | — | 22 | ~1918 |
Census Appearances
1920
Cook, Illinois
Head, age 32
Cook, Illinois · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Glassman |
| Industry | Rubber Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 43
Cook, Illinois · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Alfred H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 31 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Illinois |
| Occupation | Director Athletic Club |
| Industry | 857V |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 82000 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 52
Cook-County, Illinois · implied b. ~1888 — 5 household members
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Electrician |
| Industry | Steel mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2080 |
| Highest Grade | No 5 |
| 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 Alfred 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
Alfred Peterson
Head · 1940 · age 52 · b. ~1888 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00936-00372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frances Olszewski | 47 | Wife | — | Poland |
| 2 | John Olszewski | 23 | Son | Truck Driver | Illinois |
| 3 | Henry Olszewski | 21 | Son | Truck Driver | Illinois |
| 4 | Sigmund Olszewski | 20 | Son | Cooper | Illinois |
| 5 | Joanne Olszewski | 17 | Daughter | — | Illinois |
| 6 | Eugene Olszewski | 14 | Son | — | Illinois |
| 7 | Raymond Olszewski | 13 | Son | — | Illinois |
| 8 | John Mallet | 58 | Father-in-law | Yard Filler | Poland |
| 9 | Thomas Owens | 42 | Head | Driver | Illinois |
| 10 | Marie Owens | 30 | Wife | — | Illinois |
| 11 | Laverne Owens | 12 | Daughter | — | Illinois |
| 12 | Thomas Owens | 10 | Son | — | Illinois |
| 13 | Betty Owens | 7 | Daughter | — | Illinois |
| 14 | George Owens | 3 | Son | — | Illinois |
| 15 | Mat Madder | 55 | Head | Steel Heater | Illinois |
| 16 | Louise Madder | 55 | Wife | — | Illinois |
| 17 | Alice Madder | 22 | Daughter | — | Illinois |
| 18 | Harold Crowley | 39 | Head | Truck Driver | Illinois |
| 19 | Rosala Crowley | 36 | Wife | — | Illinois |
| 20 | Harold Crowley | 12 | Son | — | Illinois |
| 21 | Marlene Crowley | 7 | Daughter | — | Illinois |
| 22 | Irene O'Connor | 58 | Head | Housekeeper | Illinois |
| 23 | Nellie O'Connor | 22 | Daughter | Office Clerk | Illinois |
| 24 | George Wagner | 41 | Head | Mechanic | Indiana |
| 25 | Beatrice Wagner | 38 | Wife | — | Indiana |
| 26 | Jack Wagner | 16 | Son | — | Illinois |
| 27 | Shirley Buckley | 19 | Daughter | — | Illinois |
| 28 | Judith Buckley | 7 | Daughter | — | Illinois |
| 29 | Alfred Peterson THIS PERSON | 52 | Head | Electrician | Illinois |
| 30 | Lillian Peterson | 49 | Wife | — | Illinois |
| 31 | Raymond Peterson | 22 | Son | Punch Shop Helper | Illinois |
| 32 | Ralph Peterson | 21 | Son | Labor | Illinois |
| 33 | Jane Peterson | 16 | Daughter | — | Illinois |
| 34 | Richard Johnson | 28 | Head | Repair Man | Iowa |
| 35 | Pauline Johnson | 27 | Wife | — | Indiana |
| 36 | Beverly Johnson | 2 | Daughter | 0 | Illinois |
| 37 | Barbara Johnson | 1 | Daughter | 0 | Illinois |
| 38 | John Novak | 40 | Head | Tractor Driver | Illinois |
| 39 | Marie Novak | 35 | Wife | Packer | Illinois |
| 40 | Joseph Avaron | 16 | Son | — | 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)