RP
Richard Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Richard Peterson across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed), with identified parents Albert & Lenora — first a head (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Peterson |
| Given Name | Richard E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Occupation | Stone-man |
| Industry | Wholesale Printing Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stone-Man |
| Township / Ward | Rock Island 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Darlene Peterson | Daughter | — | 2 | ~1938 |
| Esther Peterson | Spouse | — | 31 | ~1909 |
| Richard Peterson | Head | — | 33 | ~1907 |
| Duane Peterson | Son | — | 5 | ~1935 |
| Ralph Peterson | Son | — | ~1940 |
Census Appearances
1920
Rock Island, …
Son, age 13
Rock Island, Illinois · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Richard E |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Rock Island, …
Son, age 23
Rock Island, Illinois · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Richard C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Occupation | storeman |
| Industry | printing office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Head, age 33
Rock-Island-County, Illinois · implied b. ~1907 — 5 household members
| Surname | Peterson |
| Given Name | Richard E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Occupation | Stone-man |
| Industry | Wholesale Printing Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| 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 Richard Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Peterson (~0.92 confidence) and mother Lenora Peterson (~0.92 confidence) and mother Leonora Peterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Peterson
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Lenora Peterson
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Leonora Peterson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Peterson
Head · 1940 · age 33 · b. ~1907 · 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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00876-00470)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Abrahamson | 52 | Wife | — | Illinois |
| 42 | Herbert Hanks | 36 | Head | Laborer | Missouri |
| 43 | Bernice Hanks | 42 | Wife | — | Missouri |
| 44 | Virgil Halton | 21 | Son | Soda-Fountain Dispenser | Missouri |
| 45 | Arthur Mittler | 11 | Grand-son | — | Missouri |
| 46 | Wayne Mittler | 8 | Grand-son | — | Missouri |
| 47 | Wade Mittler | 7 | Grand-son | — | Missouri |
| 48 | Anna Brust | 60 | Head | — | Iowa |
| 49 | Clarence Brust | 37 | Son | Core-Maker | Iowa |
| 50 | Bernice Brust | 19 | Daughter | Shoemaker | Illinois |
| 51 | Grace Harper | 57 | Head | — | Kansas |
| 52 | Myrtle Clark | 27 | Daughter | House-Work | Illinois |
| 53 | Lois Mae Clark | 11 | Grand-daughter | — | Illinois |
| 54 | Wayne Clark | 8 | Grand-son | — | Illinois |
| 55 | Johnella Scott | 33 | Lodger | Maid | Oklahoma |
| 56 | Virginia Reed | 41 | Head | — | Iowa |
| 57 | Claude E. Reed | 20 | Son | Waiter | Illinois |
| 58 | Eliza Walkup | 67 | Aunt | Book-Binder | Iowa |
| 59 | Earlie Glen | 25 | Lodger | Janitor | Tennessee |
| 60 | Spencer Lewis | 26 | Lodger | Laborer | Iowa |
| 61 | James B. Walkup | 24 | Lodger | Laborer | Florida |
| 62 | Isiah Aldridge | 45 | Head | Laborer | Georgia |
| 63 | Bertha Aldridge | 41 | Wife | — | Kansas |
| 64 | Eugene Aldridge | 11 | Son | — | Illinois |
| 65 | Jacob Aldridge | 83 | Father | — | North Carolina |
| 66 | William Jefferson | 32 | Lodger | Janitor | Texas |
| 67 | Neely Jefferson | 37 | Lodger | House-Work | Texas |
| 68 | William Wycoff | 33 | Head | Welder | Illinois |
| 69 | Elizabeth Wycoff | 28 | Wife | House To House Interviewer | Illinois |
| 70 | Janan Wycoff | 1 | Daughter | — | Illinois |
| 71 | Marilyn Louch | 17 | Lodger | Maid | Illinois |
| 72 | Isador Sanders | 64 | Head | Peddler | Russia |
| 73 | Lena Sanders | 49 | Wife | — | Russia |
| 74 | Sonia Sanders | 26 | Daughter | General Office-Work | Russia |
| 75 | Rose Sanders | 17 | Daughter | Stenographer | Illinois |
| 76 | Richard E. Peterson THIS PERSON | 33 | Head | Stone-Man | Illinois |
| 77 | Esther Peterson | 31 | Wife | — | Illinois |
| 78 | Duane Peterson | 5 | Son | — | Illinois |
| 79 | Darlene Peterson | 2 | Daughter | — | Illinois |
| 80 | Ralph Peterson | 0 | Son | — | Illinois |
Pedigree Summary
Richard
Gen 1 · 3 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)