BP
Bertha Peterson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Polk, Iowa
Our Model Tree links this Bertha Peterson across the 1900, 1910 and 1920 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1864), then head of a 5-person household.
Age 56
b. ~1864
Female
Spouse
Born: Wisconsin
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Polk, Iowa |
| Surname | Peterson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Four Mile Township |
| Est. Birth Year | ~1864 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Victor Peterson | Son | — | 19 | ~1901 |
| Alvin Peterson | Son | — | 25 | ~1895 |
| Arthur Peterson | Son | — | 13 | ~1907 |
| Charles Peterson | Head | — | 55 | ~1865 |
| Bertha Peterson | Spouse | — | 56 | ~1864 |
Census Appearances
1900
Polk, Iowa
Spouse, age 33
Polk, Iowa · implied b. ~1867 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Birth Month | May |
| Birth Year | 1867 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1910
Polk, Iowa
Spouse, age 47
Polk, Iowa · implied b. ~1863 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Years Married | 19 |
| Children Born | 5 |
| Children Living | 4 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Polk, Iowa
Spouse, age 56
Polk, Iowa · implied b. ~1864 — 5 household members
| Surname | Peterson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Bertha Peterson across 3 US Census years (1900, 1910 and 1920) in Polk, Iowa, using XGBoost record linkage.
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This person
Anchor record
Bertha Peterson
Spouse · 1920 · age 56 · b. ~1864 · 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 — Polk, Iowa
Open full size
1920 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu507unit:0293)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Coyell Miller | 41 | Head | Miner | Iowa |
| 52 | Edith Miller | 40 | Wife | — | Iowa |
| 53 | Pearl Miller | 19 | Daughter | Stenographer | Iowa |
| 54 | Edward C. Miller | 17 | Son | — | Iowa |
| 55 | Raymond Miller | 15 | Son | — | Iowa |
| 56 | David Miller | 12 | Son | — | Iowa |
| 57 | Marion Miller | 7 | Son | — | Iowa |
| 58 | James Miller | 5 | Son | — | Iowa |
| 59 | Marjorie P. Miller | 1 | Daughter | — | Iowa |
| 60 | Robert M. West | 51 | Head | Machinist | Minnesota |
| 61 | Mayme F. West | 41 | Wife | — | Minnesota |
| 62 | Ethel M. West | 21 | Daughter | Teacher | Minnesota |
| 63 | Myron C. West | 16 | Son | — | Iowa |
| 64 | Isaac S. Stark | 29 | Head | Switchman | Iowa |
| 65 | Verna D. Stark | 27 | Wife | — | Iowa |
| 66 | Ruth Stark | 4 | Daughter | — | Iowa |
| 67 | Marion Stark | 2 | Daughter | — | Iowa |
| 68 | Vern G. Estey | 31 | Head | Laborer | South Dakota |
| 69 | Hattie G. Estey | 22 | Wife | — | Iowa |
| 70 | Vernon G. Estey | 7 | Son | — | Iowa |
| 71 | Albert G. Estey | 5 | Son | — | Iowa |
| 72 | Arthur B. Estey | 3 | Son | — | Iowa |
| 73 | Ila Estey | 1 | Daughter | — | Iowa |
| 74 | William Blanchard | 50 | Head | Miner | Iowa |
| 75 | Emma E. Blanchard | 47 | Wife | — | Illinois |
| 76 | Charles Peterson | 55 | Head | Miner | Sweden |
| 77 | Bertha Peterson THIS PERSON | 56 | Wife | — | Wisconsin |
| 78 | Alvin L. Peterson | 25 | Son | Miner | Iowa |
| 79 | Victor G. Peterson | 19 | Son | Miner | Iowa |
| 80 | Arthur Peterson | 13 | Son | — | Iowa |
| 81 | Harlan B. Fisher | 53 | Head | Farmer | Iowa |
| 82 | Louise E. Fisher | 47 | Wife | — | Iowa |
| 83 | Mamie Fisher | 24 | Daughter | — | Iowa |
| 84 | Wilma Fisher | 19 | Daughter | Operator | Iowa |
| 85 | Frank J. Fisher | 17 | Son | Boarder | Iowa |
| 86 | Berton Fisher | 11 | Son | — | Iowa |
| 87 | Mildred Fisher | 9 | Daughter | — | Iowa |
| 88 | Geneva Fisher | 5 | Daughter | — | Iowa |
| 89 | Jack Fisher | 2 | Son | — | Iowa |
| 90 | Axel C. Carlson | 46 | Head | Miner | Sweden |
| 91 | Elsa J. Carlson | 33 | Wife | — | Sweden |
| 92 | Carl Carlson | 5 | Son | — | Iowa |
| 93 | Robert W. Brown | 52 | Head | Miner | England |
| 94 | Amanda J. Brown | 52 | Wife | — | Canada |
| 95 | Arthur E. Brown | 25 | Son | Miner | Missouri |
| 96 | Leonard E. Brown | 20 | Son | Miner | Missouri |
| 97 | Wesley Brown | 14 | Son | — | Missouri |
| 98 | Daisy R. Hobbs | 34 | Daughter | — | Missouri |
| 99 | Elizabeth M. Hobbs | 6 | Granddaughter | — | Missouri |
| 100 | John B. Miller | 75 | Head | Miner | West Prussia |
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)