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Bertha Lewis — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Pottawattamie, Iowa
Our Model Tree links this Bertha Lewis across the 1910 and 1920 US Censuses in Pottawattamie, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1903), then head of a 8-person household.
Age 17
b. ~1903
Female
Daughter
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Pottawattamie, Iowa |
| Surname | Lewis |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Neola Tp |
| Est. Birth Year | ~1903 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| John Lewis | Head | — | 50 | ~1870 |
| Bertha Lewis | Daughter | — | 17 | ~1903 |
| William Lewis | Son | — | 14 | ~1906 |
| John Lewis | Son | — | 21 | ~1899 |
| Pearl Lewis | Daughter | — | 11 | ~1909 |
| Earl Lewis | Son | — | 9 | ~1911 |
| Effie Lewis | Spouse | — | 41 | ~1879 |
| Glenn Lewis | Son | — | 6 | ~1914 |
Census Appearances
1910
Pottawattamie, Iowa
Daughter, age 7
Pottawattamie, Iowa · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Bertha M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Pottawattamie, Iowa
Daughter, age 17
Pottawattamie, Iowa · implied b. ~1903 — 8 household members
| Surname | Lewis |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| 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 Bertha Lewis across 2 US Census years (1910 and 1920) in Pottawattamie, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Lewis
Daughter · 1920 · age 17 · b. ~1903 · Iowa
★ You are viewing this record
Sibling
Glenn Lewis
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Lewis
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearl Lewis
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lewis
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Lewis
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Pottawattamie, Iowa
Open full size
1920 US Federal Census — Pottawattamie, Iowa
Page Contents
49 people indexed on this census page (ia:1920:14thcensusofpopu510unit:1230)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Schroeder | 32 | Head | Farmer | Iowa |
| 2 | Hans Detlefsen | 56 | Head | Farmer | Denmark |
| 3 | Christina Detlefsen | 42 | Wife | — | Denmark |
| 4 | Lucile Detlefsen | 20 | Daughter | Student | Iowa |
| 5 | Lewis W. Detlefsen | 20 | Son | Farmer | Iowa |
| 6 | Martin S. Detlefsen | 19 | Son | — | Iowa |
| 7 | Henry T. Detlefsen | 17 | Son | — | Iowa |
| 8 | Carl M. Detlefsen | 16 | Son | — | Iowa |
| 9 | Julie A. Detlefsen | 10 | Daughter | — | Iowa |
| 10 | John Meadows | 38 | Head | Farmer | Missouri |
| 11 | Cora Meadows | 32 | Wife | — | Iowa |
| 12 | Gresham Meadows | 8 | Son | — | Iowa |
| 13 | Thelma Meadows | 2 | Daughter | — | Iowa |
| 14 | Delphia Meadows | 4 | Daughter | — | Iowa |
| 15 | Ariel Meadows | 7 | Daughter | — | Iowa |
| 16 | Martin Donnelly | 48 | Head | Farmer | Iowa |
| 17 | Phillip Donnelly | 11 | Son | Student | Iowa |
| 18 | John Donnelly | 10 | Son | Student | Iowa |
| 19 | Geo Donnelly | 9 | Son | Student | Iowa |
| 20 | Leo Donnelly | 7 | Son | Student | Iowa |
| 21 | Vincent Lansbury | 29 | Head | Farmer | Iowa |
| 22 | Edith Lansbury | 28 | Wife | — | Iowa |
| 23 | Irvine Lansbury | 1 | Son | — | Iowa |
| 24 | Joseph Bennett | 32 | Head | Farmer | Iowa |
| 25 | Mary Bennett | 64 | Mother | Housekeeper | England |
| 26 | James Stebbins | 46 | Head | Farmer | Illinois |
| 27 | James Stebbins | 17 | Son | Student | Iowa |
| 28 | Leo Stebbins | 10 | Son | Student | Iowa |
| 29 | Mary Stebbins | 8 | Daughter | Student | Iowa |
| 30 | Loretta Stebbins | 5 | Daughter | Student | Iowa |
| 31 | Joseph Stebbins | 6 | Son | Student | Iowa |
| 32 | Katherine Stebbins | 2 | Daughter | — | Iowa |
| 33 | Louis Eggerson | 21 | Hired Hand | Hired Hand | Nebraska |
| 34 | Ida Eggerson | 12 | Servant | — | Iowa |
| 35 | Walter Speer | 31 | Head | Farmer | Iowa |
| 36 | Hazel Speer | 22 | Wife | — | Iowa |
| 37 | Dorothy Speer | 3 | Daughter | — | Iowa |
| 38 | Clayton Speer | 1 | Son | — | Iowa |
| 39 | John E. Lewis | 50 | Head | Farmer | Iowa |
| 40 | Effie Lewis | 41 | Wife | — | Missouri |
| 41 | John E. Lewis | 21 | Son | Farmer | Iowa |
| 42 | Bertha Lewis THIS PERSON | 17 | Daughter | — | Iowa |
| 43 | William Lewis | 14 | Son | Student | Iowa |
| 44 | Pearl Lewis | 11 | Daughter | Student | Iowa |
| 45 | Earl Lewis | 9 | Son | Student | Iowa |
| 46 | Glenn Lewis | 6 | Son | Student | Iowa |
| 47 | Fred Paterla | 26 | Head | Farmer | Iowa |
| 48 | Jessie Paterla | 28 | Wife | — | Iowa |
| 49 | John Paterla | 1 | Son | — | Iowa |
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)