HP
Henry Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Henry Peterson across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents Ernestine — first a head (b.~1891), then head of a 3-person household.
Age 49
b. ~1891
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Peterson |
| Given Name | Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | New Lenox |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | farmer |
| Industry | farming |
| Class of Worker | NP |
| Hours Worked | 60 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | New Lenox |
| Est. Birth Year | ~1891 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Henry | Age | Birth yr |
|---|---|---|---|---|
| Henry Peterson | Head | — | 49 | ~1891 |
| Francis Peterson | Son | — | 22 | ~1918 |
| Amanda Peterson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Will, Illinois
Son, age 27
Will, Illinois · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Germany |
| Occupation | Weigher |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Head, age 38
Will, Illinois · implied b. ~1892 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Henry E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 28 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Germany |
| Occupation | Salesman |
| Industry | Market |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3200 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Head, age 49
Will-County, Illinois · implied b. ~1891 — 3 household members
| Surname | Peterson |
| Given Name | Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | New Lenox |
| 1935 Residence (County) | Will |
| Occupation | farmer |
| Industry | farming |
| Class of Worker | NP |
| Hours Worked | 60 |
| Highest Grade | No 6 |
| 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 Henry Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ernestine Peterson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ernestine Peterson
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Henry Peterson
Head · 1940 · age 49 · b. ~1891 · 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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00909-00668)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Liberty | 69 | Head | — | Illinois |
| 42 | Margaret Liberty | 55 | Wife | — | Illinois |
| 43 | Arthur Liberty | 22 | Son | Rope | Illinois |
| 44 | Loretta Liberty | 19 | Daughter | Housekeeper | Illinois |
| 45 | Irene Liberty | 15 | Daughter | Housekeeper | Illinois |
| 46 | Margaret Fehr | 40 | Head | — | Illinois |
| 47 | Coralie R Fehr | 17 | Son | — | Illinois |
| 48 | George Fehr | 15 | Son | — | Illinois |
| 49 | Edward L Fehr | 15 | Son | — | Illinois |
| 50 | Lillian Fehr | 12 | Daughter | — | Illinois |
| 51 | Frances Fehr | 11 | Daughter | — | Illinois |
| 52 | Jackie Fehr | 7 | Son | — | Illinois |
| 53 | James Fehr | 6 | Son | — | Illinois |
| 54 | Lois Fehr | 4 | Daughter | — | Illinois |
| 55 | Carolyn Fehr | 1 | Daughter | — | Illinois |
| 56 | Arthur Fehr | 3 | Nephew | — | Illinois |
| 57 | Louis Hoffman | 55 | Head | Truck Driver | Illinois |
| 58 | Anna Hoffman | 52 | Wife | — | Illinois |
| 59 | Ezra Marti | 40 | Head | Clerk | Illinois |
| 60 | Emma Marti | 30 | Wife | — | Illinois |
| 61 | Carol J Marti | 10 | Daughter | — | Illinois |
| 62 | Wayne Marti | 8 | Son | — | Illinois |
| 63 | Paul D Marti | 4 | Son | — | Illinois |
| 64 | Henry Lorenz | 62 | Head | Tileing | Germany |
| 65 | Lena Lorenz | 51 | Wife | — | Illinois |
| 66 | Elmer Willis | 60 | Head | Wpa | Illinois |
| 67 | Mike Konlacanis | 63 | Head | Farmer | Greece |
| 68 | Henry Peterson THIS PERSON | 49 | Head | Farmer | Illinois |
| 69 | Amanda Peterson | 52 | Wife | — | Illinois |
| 70 | Francis E Peterson | 22 | Son | Attendant | Illinois |
| 71 | Charles Merrett | 54 | Head | Monument | Canada |
| 72 | Mable Merrett | 53 | Wife | — | Nebraska |
| 73 | Bertha K Merrett | 24 | Daughter | Labourer | Illinois |
| 74 | Fred Embling | 33 | Head | Laborer | Illinois |
| 75 | Norval Swenson | 25 | Head | Laborer | Illinois |
| 76 | Addie Swenson | 26 | Wife | — | Illinois |
| 77 | August Pieper | 52 | Head | Farmer | Illinois |
| 78 | Minnie Pieper | 46 | Wife | — | New York |
| 79 | James C Johnson | 63 | Head | Farmer | Illinois |
| 80 | George Johnson | 35 | Son | Stillman | Indiana |
Pedigree Summary
Henry
Gen 1 · 1 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)