FP
Fred Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harrison-County, Iowa
Our Model Tree links this Fred Peterson across the 1930 and 1940 US Censuses in Harrison-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 8-person household.
Age 37
b. ~1903
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Iowa |
| Surname | Peterson |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Douglas Township |
| 1935 Residence (County) | Harrison |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Douglas Township |
| Est. Birth Year | ~1903 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Maxine Peterson | Son | — | 11 | ~1929 |
| Richard Peterson | Son | — | 2 | ~1938 |
| Kenneth Peterson | Son | — | 4 | ~1936 |
| Helen Peterson | Spouse | — | 31 | ~1909 |
| Fred Peterson | Head | — | 37 | ~1903 |
| Violet Peterson | Daughter | — | 13 | ~1927 |
| Edward Peterson | Son | — | 9 | ~1931 |
| Phyllis Peterson | Daughter | — | ~1940 |
Census Appearances
1930
Harrison, Iowa
Head, age 27
Harrison, Iowa · implied b. ~1903
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Peterson |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farming |
| Industry | General farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Harrison-County, Iowa
Head, age 37
Harrison-County, Iowa · implied b. ~1903 — 8 household members
| Surname | Peterson |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Douglas Township |
| 1935 Residence (County) | Harrison |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| 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 Fred Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Fred Peterson
Head · 1940 · age 37 · b. ~1903 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Harrison-County, Iowa
Open full size
1940 US Federal Census — Harrison-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01166-00151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Umphalbaugh | 24 | Son | Farm Laborer | Colorado |
| 2 | Milton Michels | 41 | Head | Farmer | Iowa |
| 3 | R. R. Mofford | 52 | Head | Farmer | Iowa |
| 4 | Edna Mofford | 48 | Wife | — | Iowa |
| 5 | Ruth Suddick | 21 | School teacher | Instructor | Iowa |
| 6 | Donald Gibson | 30 | Head | Farmer | Iowa |
| 7 | Norma Gibson | 26 | Wife | — | Iowa |
| 8 | David Gibson | 3 | Son | — | Iowa |
| 9 | Donald Gibson | 1 | Son | — | Iowa |
| 10 | Eldert Harless | 52 | Head | Farmer | Iowa |
| 11 | Mary Harless | 44 | Wife | — | Iowa |
| 12 | Carl Harless | 22 | Son | Farm Helper | Iowa |
| 13 | Leon Henderson | 54 | Head | Farmer | Iowa |
| 14 | Lila Henderson | 54 | Wife | — | Iowa |
| 15 | Fern Henderson | 15 | Daughter | — | Iowa |
| 16 | James Terrell | 56 | Head | Farmer | Iowa |
| 17 | Julia Terrell | 45 | Wife | — | Missouri |
| 18 | Garnet Terrell | 18 | Daughter | — | Iowa |
| 19 | Nadine Terrell | 16 | Daughter | — | Iowa |
| 20 | Waunita Terrell | 8 | Daughter | — | Iowa |
| 21 | Ralph Messenger | 47 | Head | Farmer | Iowa |
| 22 | Hazel Messenger | 45 | Wife | — | Iowa |
| 23 | Lloyd Messenger | 20 | Son | Farm Helper | Iowa |
| 24 | Ray Messenger | 17 | Son | — | Iowa |
| 25 | Vera Messenger | 15 | Daughter | — | Iowa |
| 26 | Audrey Messenger | 12 | Daughter | — | Iowa |
| 27 | Ramona Messenger | 8 | Daughter | — | Iowa |
| 28 | Merlin Messenger | 5 | Son | — | Iowa |
| 29 | Lloyd Messenger | 2 | Son | — | Iowa |
| 30 | Fred Peterson THIS PERSON | 37 | Head | Farmer | Iowa |
| 31 | Helen Peterson | 31 | Wife | — | Iowa |
| 32 | Violet Peterson | 13 | Daughter | — | Iowa |
| 33 | Maxine Peterson | 11 | Son | — | Iowa |
| 34 | Edward Peterson | 9 | Son | — | Iowa |
| 35 | Kenneth Peterson | 4 | Son | — | Iowa |
| 36 | Richard Peterson | 2 | Son | — | Iowa |
| 37 | Phyllis Peterson | 0 | Daughter | — | Iowa |
| 38 | Isaac W. Erlewine | 57 | Head | — | Iowa |
| 39 | Laura E. Erlewine | 61 | Wife | — | Illinois |
| 40 | Ray Hutcheson | 45 | Head | Farmer | 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)