RP
Richard Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worth-County, Iowa
Our Model Tree links this Richard Peterson across the 1930 and 1940 US Censuses in Worth-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 11-person household.
Age 19
b. ~1921
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worth-County, Iowa |
| Surname | Peterson |
| Given Name | Richard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Worth |
| Additional Details | |
| Occupation | farm laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 600 |
| Highest Grade | H 3 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Laborer |
| Township / Ward | Joice |
| Est. Birth Year | ~1921 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| James Peterson | Son | — | 1 | ~1939 |
| Gene Peterson | Son | — | 12 | ~1928 |
| Ruby Peterson | Daughter | — | 10 | ~1930 |
| Richard Peterson | Son | — | 19 | ~1921 |
| Ruth Peterson | Daughter | — | 10 | ~1930 |
| Lois Peterson | Daughter | — | 16 | ~1924 |
| Lewis Peterson | Head | — | 46 | ~1894 |
| Marie Peterson | Daughter | — | 21 | ~1919 |
| Cecil Peterson | Son | — | 14 | ~1926 |
| Ronald Peterson | Son | — | 8 | ~1932 |
| Ellen Peterson | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Worth, Iowa
Son, age 9
Worth, Iowa · implied b. ~1921 — 25 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Worth-County, Iowa
Son, age 19
Worth-County, Iowa · implied b. ~1921 — 11 household members
| Surname | Peterson |
| Given Name | Richard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Worth |
| Occupation | farm laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 600 |
| Highest Grade | H 3 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Peterson
Son · 1940 · age 19 · b. ~1921 · Iowa
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Sibling
Cecil Peterson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Peterson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Peterson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Peterson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gene Peterson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Peterson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Peterson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Peterson
Sibling · 1940 · age 1
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 — Worth-County, Iowa
Open full size
1940 US Federal Census — Worth-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01217-00027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joan File | 7 | daughter | 0 | Iowa |
| 42 | James File | 1 | son | 0 | Iowa |
| 43 | Garnet Moore | 23 | head | Laborer | Iowa |
| 44 | Adena Moore | 23 | wife | 0 | Iowa |
| 45 | Carmen Moore | 4 | daughter | 0 | Iowa |
| 46 | Larry Moore | 2 | son | 0 | Iowa |
| 47 | Alfred Severson | 51 | head | Blacksmith | Iowa |
| 48 | Rae Severson | 55 | wife | House Work | Iowa |
| 49 | Frank Rowe | 42 | head | Carpenter | Iowa |
| 50 | Jennie Rowe | 49 | wife | House Cleaning | Minnesota |
| 51 | Irene Rowe | 16 | daughter | Book Binding | Iowa |
| 52 | Elizabeth Rowe | 14 | daughter | 0 | Iowa |
| 53 | Faye Rowe | 11 | daughter | 0 | Iowa |
| 54 | Henry Raasa | 51 | head | Farm Operator | Iowa |
| 55 | Clara Raasa | 47 | wife | 0 | Iowa |
| 56 | Orlean Raasa | 27 | son | Farm Operator | Iowa |
| 57 | Fern Raasa | 17 | daughter | 0 | Iowa |
| 58 | Lewis Peterson | 46 | head | Farmer | Iowa |
| 59 | Ellen Peterson | 41 | wife | 0 | Iowa |
| 60 | Marie Peterson | 21 | daughter | 0 | Iowa |
| 61 | Richard Peterson THIS PERSON | 19 | son | Farm Laborer | Iowa |
| 62 | Lois Peterson | 16 | daughter | 0 | Iowa |
| 63 | Cecil Peterson | 14 | son | 0 | Iowa |
| 64 | Gene Peterson | 12 | son | 0 | Iowa |
| 65 | Ruth Peterson | 10 | daughter | 0 | Iowa |
| 66 | Ruby Peterson | 10 | daughter | 0 | Iowa |
| 67 | Ronald Peterson | 8 | son | 0 | Iowa |
| 68 | James Peterson | 1 | son | 0 | Iowa |
| 69 | Burton Aaland | 29 | head | Miller | Iowa |
| 70 | Jennie Aaland | 29 | wife | 0 | North Dakota |
| 71 | Bonnie Aaland | 7 | daughter | 0 | Iowa |
| 72 | Marlene Aaland | 6 | daughter | 0 | Iowa |
| 73 | Ole Haugs | 63 | head | 0 | Norway |
| 74 | Saave Haugs | 48 | brother | Day Laborer | Iowa |
| 75 | James Dalby | 51 | head | Farm Operator | Wisconsin |
| 76 | Viola Dalby | 46 | wife | 0 | Wisconsin |
| 77 | Helen Dalby | 19 | daughter | 0 | Iowa |
| 78 | Harold Dalby | 17 | son | 0 | Iowa |
| 79 | William Aaland | 48 | head | Farmer | Iowa |
| 80 | Willis Larson | 37 | head | Road Patrolman | Iowa |
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)