RP
Richard Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Richard Peterson across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed), with identified parents Joseph & Alma — first a son (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Peterson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Retail Paint Store |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 885 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Truck Driver |
| Township / Ward | Galesburg City |
| Est. Birth Year | ~1902 |
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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Richard Peterson | Son | — | 38 | ~1902 |
| Ester Peterson | Daughter | — | 37 | ~1903 |
| Alma Peterson | Head | — | 77 | ~1863 |
Census Appearances
1920
Knox, Illinois
Son, age 19
Knox, Illinois · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Salesman |
| Industry | Store Goods |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Son, age 28
Knox, Illinois · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Truck Driver |
| Industry | Meat Market |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Son, age 38
Knox-County, Illinois · implied b. ~1902 — 3 household members
| Surname | Peterson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Occupation | Truck Driver |
| Industry | Retail Paint Store |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 885 |
| Highest Grade | 8 |
| 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 Richard Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Peterson (~0.92 confidence) and mother Alma Peterson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Peterson
b. ~1853
Source father
● Household
· direct · ~0.92
Mother
Alma Peterson
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Peterson
Son · 1940 · age 38 · b. ~1902 · Illinois
★ You are viewing this record
Sibling
Ester Peterson
Sibling · 1940 · age 37
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
1940 US Federal Census — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00826-00493)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary P. Johnson | 67 | Head | — | Sweden |
| 42 | Carl Lundell | 31 | Head | Clerk | Iowa |
| 43 | Doris S. Lundell | 22 | Wife | — | Iowa |
| 44 | Robert Lundell | 2 | Son | — | Illinois |
| 45 | Gary J. Lundell | 0 | Son | — | Illinois |
| 46 | Anton Palifan | 56 | Head | Laborer | Yugoslavia |
| 47 | Mary Palifan | 49 | Wife | — | Yugoslavia |
| 48 | Mary Palifan | 24 | Daughter | — | Illinois |
| 49 | Max C. Werden | 42 | Head | Diesel Engineer | Iowa |
| 50 | Ellen W. Werden | 39 | Wife | Seamstress | Iowa |
| 51 | Inez D. Hamilton | 36 | Head | Power Machine Operator | Colorado |
| 52 | Velma Hamilton | 17 | Daughter | — | Colorado |
| 53 | Charles Linn | 37 | Cousin | Fire Builder | Kansas |
| 54 | Samuel Gill | 71 | Father | — | Nebraska |
| 55 | Eli A. Rowe | 30 | Head | Hatchery Help | Illinois |
| 56 | Irene Rowe | 26 | Wife | Stenographer | Illinois |
| 57 | Fred Isaacson | 56 | Head | Carpenter | Illinois |
| 58 | Frank X. Isaacson | 53 | Wife | Power Machine Operator | Illinois |
| 59 | Jane Isaacson | 23 | Daughter | File Clerk | Illinois |
| 60 | Alma Peterson | 77 | Head | — | Sweden |
| 61 | Richard Peterson THIS PERSON | 38 | Son | Truck Driver | Illinois |
| 62 | Ester Peterson | 37 | Daughter | Seamstress | Illinois |
| 63 | George D. Mccall | 42 | Head | Car Fitter | Illinois |
| 64 | Mabel Mccall | 36 | Wife | Cook | Illinois |
| 65 | Dorothy Mccall | 11 | Daughter | — | Illinois |
| 66 | George Mccall | 9 | Son | — | Illinois |
| 67 | James Mccall | 8 | Son | — | Illinois |
| 68 | Wanda Mccall | 5 | Daughter | — | Illinois |
| 69 | John B. Swinger | 73 | Head | — | Illinois |
| 70 | Donald Swinger | 27 | Son | Printing Press Operator | Illinois |
| 71 | Gladys Swinger | 22 | Daughter | — | Missouri |
| 72 | Darla J. Swinger | 1 | Granddaughter | — | Illinois |
| 73 | Maheridan Fuller | 35 | Head | Derrick Operator | Indiana |
| 74 | Lennie Fuller | 31 | Wife | — | Indiana |
| 75 | Patricia Fuller | 9 | Daughter | — | Illinois |
| 76 | Thomas Fuller | 7 | Son | — | Illinois |
| 77 | John Fuller | 2 | Son | — | Illinois |
| 78 | Raymond Lee Fuller | 1 | Son | — | Illinois |
| 79 | Daron L. Bowman | 27 | Head | Cabinet Maker | Illinois |
| 80 | Bertha Bowman | 25 | Wife | — | Kansas |
Related Census Records
Pedigree Summary
Richard + 1 sibling
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 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)