MP
Marie Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hamilton-County, Iowa
Our Model Tree links this Marie Peterson across the 1930 and 1940 US Censuses in Hamilton-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 7-person household.
Age 40
b. ~1900
Female
Spouse
Born: Texas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Iowa |
| Surname | Peterson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Rose Grove Township |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | Rose Grove Township |
| Est. Birth Year | ~1900 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marie | Age | Birth yr |
|---|---|---|---|---|
| Velda Peterson | Daughter | — | 13 | ~1927 |
| Joann Peterson | Daughter | — | 6 | ~1934 |
| Thomas Peterson | Head | — | 43 | ~1897 |
| Darlene Peterson | Daughter | — | 9 | ~1931 |
| Thomas Peterson | Son | — | 21 | ~1919 |
| Marie Peterson | Spouse | — | 40 | ~1900 |
| Clifford Peterson | Son | — | 18 | ~1922 |
Census Appearances
1930
Hamilton, Iowa
Spouse, age 30
Hamilton, Iowa · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Texas |
| Age at First Marriage | 19 |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Hamilton-County, Iowa
Spouse, age 40
Hamilton-County, Iowa · implied b. ~1900 — 7 household members
| Surname | Peterson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Rose Grove Township |
| 1935 Residence (County) | Hamilton |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Marie Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marie Peterson
Spouse · 1940 · age 40 · b. ~1900 · 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 — Hamilton-County, Iowa
Open full size
1940 US Federal Census — Hamilton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01164-00517)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter O. Nerland | 57 | Head | Farmer | Norway |
| 2 | Anna Nerland | 53 | Wife | — | Iowa |
| 3 | Harold Nerland | 25 | Son | Farmer | Iowa |
| 4 | Everett Nerland | 15 | Son | Farm Helper | Iowa |
| 5 | Raymond Johnson | 25 | Head | Farmer | Iowa |
| 6 | Ruth Johnson | 24 | Wife | — | Iowa |
| 7 | Ray Eide | 25 | Head | Farmer | Iowa |
| 8 | Myrtle Eide | 25 | Wife | — | Iowa |
| 9 | Eli O. Swenson | 35 | Head | Farmer | Iowa |
| 10 | Laverna Swenson | 26 | Wife | — | Iowa |
| 11 | Oma Swenson | 7 | Daughter | — | Iowa |
| 12 | Larry Swenson | 3 | Son | — | Iowa |
| 13 | Udall Evans | 19 | Brother-in-law | Farm Laborer | Iowa |
| 14 | Adolph Thoreson | 66 | Head | Farmer | Illinois |
| 15 | Amada Thoreson | 62 | Wife | — | Illinois |
| 16 | Ralph Thoreson | 24 | Son | Farm Laborer | Iowa |
| 17 | Donald Thoreson | 17 | Son | Student | Iowa |
| 18 | Ruth Thoreson | 12 | Daughter | — | Iowa |
| 19 | Florence Staples | 17 | Maid | Maid | South Dakota |
| 20 | Vernon Ahrens | 21 | Laborer | Farm Laborer | Iowa |
| 21 | Willie Thoreson | 26 | Head | Farm Laborer | Iowa |
| 22 | Selma Thoreson | 23 | Wife | — | Iowa |
| 23 | Thomas Peterson | 43 | Head | Farmer | Iowa |
| 24 | Marie Peterson THIS PERSON | 40 | Wife | — | Texas |
| 25 | Thomas Jr. Peterson | 21 | Son | Student | Iowa |
| 26 | Clifford Peterson | 18 | Son | Farm Laborer | Iowa |
| 27 | Velda Peterson | 13 | Daughter | — | Iowa |
| 28 | Darlene Peterson | 9 | Daughter | — | Iowa |
| 29 | Joann Peterson | 6 | Daughter | — | Iowa |
| 30 | Nels Anderson | 22 | Head | Farmer | South Dakota |
| 31 | Anna Anderson | 19 | Wife | — | Iowa |
| 32 | Jerry Anderson | 1 | Son | — | Iowa |
| 33 | Shirley Anderson | 0 | Daughter | — | Iowa |
| 34 | Glenn Choate | 42 | Head | Farmer | Iowa |
| 35 | Ethel Choate | 41 | Wife | — | Iowa |
| 36 | Glennadene Choate | 9 | Daughter | — | Iowa |
| 37 | Rowena Choate | 6 | Daughter | — | Iowa |
| 38 | Sherman Ford | 31 | Brother-in-law | Farm Laborer | Iowa |
| 39 | Susie Struat | 58 | Head | Farmer | Nebraska |
| 40 | Neuman Stangleman | 19 | Laborer | Farm Laborer | 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)