MP
Marie Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buena-Vista-County, Iowa
Our Model Tree links this Marie Peterson across the 1920, 1930 and 1940 US Censuses in Buena-Vista-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Female
Spouse
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Buena-Vista-County, Iowa |
| Surname | Peterson |
| Given Name | Marie |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Elk Township |
| 1935 Residence (County) | Buena Vista |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | none |
| Income (1939) | 0 |
| Highest Grade | H 5 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Township / Ward | Elk Township |
| Est. Birth Year | ~1880 |
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 Marie | Age | Birth yr |
|---|---|---|---|---|
| Wm Peterson | Head | — | 59 | ~1881 |
| Marie Peterson | Spouse | — | 60 | ~1880 |
| Lloyd Peterson | Son | — | 21 | ~1919 |
Census Appearances
Spouse, age 41
Buena Vista, Iowa · implied b. ~1879 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | norway |
1930
Buena Vista, …
Other, age 51
Buena Vista, Iowa · implied b. ~1879 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Marie |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 22 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Buena-Vista-County, Iowa
Spouse, age 60
Buena-Vista-County, Iowa · implied b. ~1880 — 3 household members
| Surname | Peterson |
| Given Name | Marie |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Elk Township |
| 1935 Residence (County) | Buena Vista |
| Naturalization Status | Naturalized |
| Industry | none |
| Income (1939) | 0 |
| Highest Grade | H 5 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Marie Peterson
Spouse · 1940 · age 60 · b. ~1880 · 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 — Buena-Vista-County, Iowa
Open full size
1940 US Federal Census — Buena-Vista-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01143-00079)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wm Henry Peterson | 59 | Head | Farmer | Iowa |
| 2 | Marie Peterson THIS PERSON | 60 | wife | — | Norway |
| 3 | Lloyd Peterson | 21 | son | Farm Laborer | Iowa |
| 4 | J. A. Buckingham | 56 | Head | Farmer | Illinois |
| 5 | Ora F. Buckingham | 56 | wife | — | Illinois |
| 6 | N. H. Mahn | 69 | Head | Farmer | Illinois |
| 7 | Hulda C. Mahn | 58 | wife | — | Iowa |
| 8 | Le Roy T. Mahn | 23 | son | Farm Laborer | Iowa |
| 9 | Henry A. Mahn | 19 | son | Farm Laborer | Iowa |
| 10 | Alfred Teriankee|Terianker | 41 | Head | Farmer | Iowa |
| 11 | Florence Teriankee|Terianker | 37 | wife | — | Iowa |
| 12 | Lyle Teriankee|Terianker | 13 | son | — | Iowa |
| 13 | Gilbert Teriankee|Terianker | 11 | son | — | Iowa |
| 14 | Dorothy Teriankee|Terianker | 8 | daughter | — | Iowa |
| 15 | Arlene Teriankee|Terianker | 6 | daughter | — | Iowa |
| 16 | Ray Teriankee|Terianker | 2 | son | — | Iowa |
| 17 | Herbert Fagerholm | 27 | Head | Farmer | Iowa |
| 18 | Dorothy Fagerholm | 23 | wife | — | Iowa |
| 19 | Mona Jean Fagerholm | 7 | daughter | — | Iowa |
| 20 | Terrence Dean Fagerholm | 3 | son | — | Iowa |
| 21 | A. G. Meyer | 58 | Head | Farmer | Iowa |
| 22 | Henrietta Meyer | 48 | wife | — | Iowa |
| 23 | Garland Meyer | 21 | son | Farm Laborer | Iowa |
| 24 | Wayne Meyer | 19 | son | — | Iowa |
| 25 | Keith Meyer | 10 | son | — | South Dakota |
| 26 | Carl Bergquist | 55 | Head | Farmer | Sweden |
| 27 | Tekla Bergquist | 42 | wife | — | Sweden |
| 28 | Gordon Bergquist | 19 | son | Farm Laborer | Iowa |
| 29 | Roy Bergquist | 9 | son | — | Iowa |
| 30 | Elda Bergquist | 5 | son | — | Iowa |
| 31 | Beverly Bergquist | 2 | daughter | — | Iowa |
| 32 | Clifford Andersson | 30 | Head | Farmer | Iowa |
| 33 | Sylvia Andersson | 30 | wife | — | Iowa |
| 34 | Richard Andersson | 7 | son | — | Iowa |
| 35 | Kenneth Andersson | 1 | son | — | Iowa |
| 36 | Floyd Adolphson | 24 | hired man | Farm Laborer | Iowa |
| 37 | Carl Madsen | 47 | Head | Farmer | Denmark |
| 38 | Hazel Madsen | 40 | wife | — | Iowa |
| 39 | Donald Madsen | 19 | son | Farm Laborer | Iowa |
| 40 | Wilma Madsen | 15 | daughter | — | Iowa |
Related Census Records
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)