MP
Mary Peters — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cerro-Gordo-County, Iowa
Our Model Tree links this Mary Peters across the 1920, 1930 and 1940 US Censuses in Cerro-Gordo-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 3-person household.
Age 56
b. ~1884
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cerro-Gordo-County, Iowa |
| Surname | Peters |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Pleasant Valley Twp |
| 1935 Residence (County) | Cerro Gordo |
| Additional Details | |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Pleasant Valley Twp |
| Est. Birth Year | ~1884 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Harm Peters | Head | — | 62 | ~1878 |
| Leo Peters | Son | — | 24 | ~1916 |
| Mary Peters | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Cerro Gordo, …
Spouse, age 35
Cerro Gordo, Iowa · implied b. ~1885 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peters |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cerro Gordo, …
Spouse, age 46
Cerro Gordo, Iowa · implied b. ~1884 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peters |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 26 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cerro-Gordo-County, Iowa
Spouse, age 56
Cerro-Gordo-County, Iowa · implied b. ~1884 — 3 household members
| Surname | Peters |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Pleasant Valley Twp |
| 1935 Residence (County) | Cerro Gordo |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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 Mary Peters across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Peters
Spouse · 1940 · age 56 · b. ~1884 · 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 — Cerro-Gordo-County, Iowa
Open full size
1940 US Federal Census — Cerro-Gordo-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01146-01206)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty Jane Hemmery | 8 | Daughter | — | Iowa |
| 2 | Marguerite Hemmery | 4 | Daughter | — | Iowa |
| 3 | Lester Petersen | 26 | Hired man | Laborer | Iowa |
| 4 | Otto Dress | 57 | Head | Farmer | Nebraska |
| 5 | Lena Dress | 55 | Wife | — | Iowa |
| 6 | Benford Dress | 24 | Son | Farmer | Iowa |
| 7 | Harm Peters | 62 | Head | Farmer | Illinois |
| 8 | Mary Peters THIS PERSON | 56 | Wife | Farmer | Iowa |
| 9 | Leo Peters | 24 | Son | Farmer | Iowa |
| 10 | Nels Smith | 49 | Head | Farmer | Illinois |
| 11 | Katherine Smith | 46 | Wife | Farmer | Denmark |
| 12 | Ray Watson | 37 | Head | Farmer | Iowa |
| 13 | Viola Watson | 36 | Wife | — | Iowa |
| 14 | Beverly Watson | 8 | Daughter | — | Iowa |
| 15 | Jacob Just | 54 | Head | Farmer | Russia |
| 16 | Frances Just | 50 | Wife | — | Russia |
| 17 | Adam Just | 18 | Son | Laborer | Iowa |
| 18 | John Just | 16 | Son | — | Iowa |
| 19 | Alex Just | 14 | Son | — | Iowa |
| 20 | Thomas Harken | 31 | Head | Farmer | Germany |
| 21 | Clara Harken | 25 | Wife | — | Iowa |
| 22 | Richard Harken | 29 | Brother | Laborer | Germany |
| 23 | Arthur Brink | 42 | Head | Farmer | Iowa |
| 24 | Hazel Brink | 36 | Wife | — | Washington |
| 25 | Warren Hall | 19 | Hired man | Helper | Iowa |
| 26 | Martin Riedel | 52 | Head | Farmer | Iowa |
| 27 | Bessie Riedel | 33 | Wife | — | Iowa |
| 28 | Gladys Riedel | 9 | Daughter | — | Iowa |
| 29 | Donald Riedel | 6 | Son | — | Iowa |
| 30 | Gary Lee Riedel | 1 | Son | — | Iowa |
| 31 | Henry D Haitland | 50 | Head | Farmer | Iowa |
| 32 | Emma Haitland | 44 | Wife | — | Iowa |
| 33 | Roger Haitland | 6 | Son | — | Iowa |
| 34 | John Lewis | 34 | Head | Farmer | Iowa |
| 35 | Elizabeth Lewis | 33 | Wife | — | Iowa |
| 36 | Adeline Lewis | 11 | Daughter | — | Iowa |
| 37 | Janice Lewis | 2 | Daughter | — | Iowa |
| 38 | Edward Bentham | 40 | Head | Farmer | Iowa |
| 39 | Clara Bentham | 32 | Wife | — | Iowa |
| 40 | Quentin Bentham | 13 | Son | — | 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)