MP
Mary Peterson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Buena Vista, Iowa
Our Model Tree links this Mary Peterson across the 1920, 1930 and 1940 US Censuses in Buena Vista, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 6-person household.
Age 41
b. ~1879
Female
Spouse
Born: Norway
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Buena Vista, Iowa |
| 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 |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | norway |
| Township / Ward | Elk Township |
| Est. Birth Year | ~1879 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Pearl Peterson | Daughter | — | 10 | ~1910 |
| Evelyne Peterson | Daughter | — | 12 | ~1908 |
| W Peterson | Head | — | 39 | ~1881 |
| Glenn Peterson | Son | — | 15 | ~1905 |
| Lloyd Peterson | Son | — | 1 | ~1919 |
| Mary Peterson | Spouse | — | 41 | ~1879 |
Census Appearances
1920
Buena Vista, …
Spouse, age 41
Buena Vista, Iowa · implied b. ~1879 — 6 household members
| 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 |
Spouse, age 60
Buena-Vista-County, Iowa · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| 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 Mary 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
Mary Peterson
Spouse · 1920 · age 41 · b. ~1879 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Buena Vista, Iowa
Open full size
1920 US Federal Census — Buena Vista, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu480unit:0255)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Malinda Buddenhagen | 74 | Boarder | — | Mecklenburg |
| 2 | Jules Fredericksen | 44 | Head | Farmer | Illinois |
| 3 | Sena Fredericksen | 23 | Wife | — | Iowa |
| 4 | Harold P. Fredericksen | 2 | Son | — | Iowa |
| 5 | Louis Fredericksen | 27 | Brother | — | Illinois |
| 6 | Harold P. Mortensen | 21 | Hired man | Farm Laborer | Iowa |
| 7 | Jorgen M. Larsen | 51 | Head | Farmer | Denmark |
| 8 | Olena Larsen | 51 | Wife | — | Denmark |
| 9 | William Larsen | 21 | Son | Farm Laborer | Iowa |
| 10 | Henry Larsen | 18 | Son | Farm Laborer | Iowa |
| 11 | Annie M. Larsen | 16 | Daughter | — | Iowa |
| 12 | Walter Lauridsen | 28 | Head | Farmer | Iowa |
| 13 | Julia Lauridsen | 34 | Wife | — | Iowa |
| 14 | Opal R. Lauridsen | 4 | Daughter | — | Iowa |
| 15 | Lloyd L. Lauridsen | 2 | Son | — | Iowa |
| 16 | Marius Lauridsen | 24 | Hired man | Farm Laborer | Denmark |
| 17 | John Jackson | 31 | Head | Farmer | Iowa |
| 18 | Tharla Jackson | 17 | Sister | — | Sweden |
| 19 | Emery Jorgenson | 27 | Head | Farmer | Michigan |
| 20 | Ida Jorgenson | 25 | Wife | — | Missouri |
| 21 | Bertel Hansen | 62 | Head | Farmer | Denmark |
| 22 | Kathrina Hansen | 50 | Wife | — | Denmark |
| 23 | Charles B. Hansen | 27 | Son | Farm Laborer | Iowa |
| 24 | Hans C. Hansen | 23 | Son | Farm Laborer | Iowa |
| 25 | Ernest B. Hansen | 22 | Son | Farm Laborer | Iowa |
| 26 | Margarette Hansen | 19 | Daughter | — | Iowa |
| 27 | Harry R. Hansen | 17 | Son | — | Iowa |
| 28 | Esther L. Hansen | 15 | Daughter | — | Iowa |
| 29 | Ella R. Hansen | 12 | Daughter | — | Iowa |
| 30 | Howard M. Hansen | 10 | Son | — | Iowa |
| 31 | Marvin L. Hansen | 3 | Son | — | Iowa |
| 32 | W. Henry Peterson | 39 | Head | Farmer | Iowa |
| 33 | Mary E. Peterson THIS PERSON | 41 | Wife | — | Norway |
| 34 | Glenn W. Peterson | 15 | Son | — | Iowa |
| 35 | Evelyne E. Peterson | 12 | Daughter | — | Iowa |
| 36 | Pearl H. Peterson | 10 | Daughter | — | Iowa |
| 37 | Lloyd H. Peterson | 1 | Son | — | Iowa |
| 38 | Alfred S. Jensen | 39 | Head | Carpenter | Illinois |
| 39 | Edna E. Jensen | 33 | Wife | — | Wisconsin |
| 40 | Louise M. Jensen | 14 | Daughter | — | North Dakota |
| 41 | Alice V. Jensen | 11 | Daughter | — | North Dakota |
| 42 | Peter A. Jensen | 8 | Son | — | Wisconsin |
| 43 | Victor Sandberg | 38 | Head | Farmer | Sweden |
| 44 | Selma M. Nelson | 41 | Housekeeper | Housekeeper | Iowa |
| 45 | Mary E. Nelson | 26 | Boarder | — | Sweden |
| 46 | Maggie Vanderhoff | 72 | Head | Farmer | Ostfriesland |
| 47 | Charles Vanderhoff | 37 | Son | Farm Laborer | Iowa |
| 48 | Julius D. Vanderhoff | 33 | Son | Farm Laborer | Iowa |
| 49 | Henry W. Haase | 39 | Head | Farmer | Illinois |
| 50 | Marguerite J. Haase | 39 | Wife | — | Iowa |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)