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Gertrude Lewis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Portage-County, Wisconsin
Our Model Tree links this Gertrude Lewis across the 1930 and 1940 US Censuses in Portage-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 13-person household.
Age 18
b. ~1922
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Portage-County, Wisconsin |
| Surname | Lewis |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Stevens Point |
| 1935 Residence (County) | Portage |
| Additional Details | |
| Occupation | Helping |
| Industry | at home |
| Class of Worker | NP |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Helping |
| Township / Ward | Stevens Point |
| Est. Birth Year | ~1922 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Lewis | Daughter | — | 2 | ~1938 |
| Genevieve Lewis | Daughter | — | 12 | ~1928 |
| Mary Lewis | Daughter | — | 8 | ~1932 |
| Helen Lewis | Daughter | — | 4 | ~1936 |
| Catherine Lewis | Daughter | — | 15 | ~1925 |
| Margaret Lewis | Daughter | — | 15 | ~1925 |
| Henry Lewis | Head | — | 50 | ~1890 |
| Catherine Lewis | Spouse | — | 43 | ~1897 |
| Robert Lewis | Son | — | 9 | ~1931 |
| Gertrude Lewis | Daughter | — | 18 | ~1922 |
| Joan Lewis | Daughter | — | 16 | ~1924 |
| James Lewis | Son | — | 6 | ~1934 |
| Carol Lewis | Daughter | — | 1 | ~1939 |
Census Appearances
1930
Portage, Wisconsin
Daughter, age 8
Portage, Wisconsin · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Gertrude |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Portage-County, Wisconsin
Daughter, age 18
Portage-County, Wisconsin · implied b. ~1922 — 13 household members
| Surname | Lewis |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Stevens Point |
| 1935 Residence (County) | Portage |
| Occupation | Helping |
| Industry | at home |
| Class of Worker | NP |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Gertrude Lewis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Gertrude Lewis
Daughter · 1940 · age 18 · b. ~1922 · Wisconsin
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Sibling
James Lewis
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Lewis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Lewis
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Lewis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Lewis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Lewis
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Lewis
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lewis
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Lewis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Lewis
Sibling · 1940 · age 2
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
1940 US Federal Census — Portage-County, Wisconsin
Open full size
1940 US Federal Census — Portage-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04513-00606)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Donna Weber | 5 | Daughter | — | Wisconsin |
| 2 | Oscar C Mortenson | 57 | Head | Salesman | Wisconsin |
| 3 | Sophia Mortenson | 61 | Wife | Seamstress | Wisconsin |
| 4 | Ruby Burt | 55 | Lodger | Practical Nurse | Wisconsin |
| 5 | Sam Bond | 30 | Head | Distributor | Lithuania |
| 6 | Dora Bond | 29 | Wife | — | Russia |
| 7 | Albert Bond | 5 | Son | — | Wisconsin |
| 8 | Henry Schabwald | 44 | Head | Reports Collector | Wisconsin |
| 9 | Julia Schabwald | 39 | Wife | — | Wisconsin |
| 10 | Mary Louise Schabwald | 10 | Daughter | — | Wisconsin |
| 11 | Frederick Schabwald | 8 | Son | — | Wisconsin |
| 12 | Paul Schabwald | 3 | Son | — | Wisconsin |
| 13 | Harvey Wright | 30 | Head | Manager | Wisconsin |
| 14 | Beatrice Wright | 30 | Wife | — | Wisconsin |
| 15 | Carol Ann Wright | 3 | Daughter | — | Wisconsin |
| 16 | Henry Lewis | 50 | Head | Manager | Iowa |
| 17 | Catherine Lewis | 43 | Wife | — | Wisconsin |
| 18 | Gertrude Lewis THIS PERSON | 18 | Daughter | Helping | Minnesota |
| 19 | Joan Lewis | 16 | Daughter | — | Minnesota |
| 20 | Margaret Lewis | 15 | Daughter | — | Minnesota |
| 21 | Catherine Lewis | 15 | Daughter | — | Minnesota |
| 22 | Genevieve Lewis | 12 | Daughter | — | Minnesota |
| 23 | Robert Lewis | 9 | Son | — | Wisconsin |
| 24 | Mary Lou Lewis | 8 | Daughter | — | Wisconsin |
| 25 | James Lewis | 6 | Son | — | Wisconsin |
| 26 | Helen Lewis | 4 | Daughter | — | Wisconsin |
| 27 | Carol Lewis | 1 | Daughter | — | Wisconsin |
| 28 | Dorothy Lewis | 2 | Daughter | — | Wisconsin |
| 29 | Jessie Cauley | 71 | Head | — | Wisconsin |
| 30 | Grace Cauley | 48 | Daughter | Teacher | Wisconsin |
| 31 | Bernice Cauley | 46 | Daughter | Teacher | Wisconsin |
| 32 | Edmund L De Bot | 41 | Head | — | Belgium |
| 33 | Julia De Bot | 59 | Wife | — | Belgium |
| 34 | Henry Joseph | 50 | Head | Pipe Track | Wisconsin |
| 35 | Arthur R Cook | 40 | Head | Dentist | Wisconsin |
| 36 | Laura Cook | 36 | Wife | — | Wisconsin |
| 37 | Charlotte Ann Cook | 9 | Daughter | — | Wisconsin |
| 38 | William Cook | 7 | Son | — | Wisconsin |
| 39 | Lawrence Cook | 5 | Son | — | Wisconsin |
| 40 | Judd Chenevert | 47 | Head | Janitor | Wisconsin |
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)