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Gertrude Lewis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Chester-County, Pennsylvania
Our Model Tree links this Gertrude Lewis across the 1930 and 1940 US Censuses in Chester-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 10-person household.
Age 17
b. ~1923
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Chester-County, Pennsylvania |
| Surname | Lewis |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | East Brandywine Twp |
| 1935 Residence (County) | Chester |
| Additional Details | |
| Occupation | New worker |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | New Worker |
| Township / Ward | East Brandywine Twp |
| Est. Birth Year | ~1923 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Edith Lewis | Daughter | — | 11 | ~1929 |
| Margaret Margaret | Daughter | — | 20 | ~1920 |
| Harry Lewis | Head | — | 41 | ~1899 |
| Cora Lewis | Spouse | — | 39 | ~1901 |
| William Lewis | Son | — | 9 | ~1931 |
| Samuel Lewis | Son | — | 16 | ~1924 |
| Gertrude Lewis | Daughter | — | 17 | ~1923 |
| Marian Lewis | Daughter | — | 7 | ~1933 |
| Cora Lewis | Daughter | — | 12 | ~1928 |
| Evelyn Lewis | Daughter | — | 4 | ~1936 |
Census Appearances
1930
Delaware, Pennsylvania
Daughter, age 7
Delaware, Pennsylvania · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Gertrude L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Chester-County, Pennsylvania
Daughter, age 17
Chester-County, Pennsylvania · implied b. ~1923 — 10 household members
| Surname | Lewis |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | East Brandywine Twp |
| 1935 Residence (County) | Chester |
| Occupation | New worker |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 17 · b. ~1923 · Pennsylvania
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Sibling
Margaret Margaret
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Lewis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Lewis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Lewis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marian Lewis
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cora Lewis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lewis
Sibling · 1940 · 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
1940 US Federal Census — Chester-County, Pennsylvania
Open full size
1940 US Federal Census — Chester-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03464-00740)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jane S Bicking | 45 | Wife | — | Pennsylvania |
| 2 | H Elizabeth Kane | 15 | Daughter | — | Pennsylvania |
| 3 | Charles Pyle | 51 | Gardener | Gardener | Pennsylvania |
| 4 | Grace C Pyle | 48 | Housekeeper | Housekeeper | Pennsylvania |
| 5 | George R North | 80 | Head | Farmer | Maryland |
| 6 | Sarah K North | 71 | Wife | — | Pennsylvania |
| 7 | Lucy Spottis | 55 | Housekeeper | Housework | England |
| 8 | Myrtle H North | 53 | Head | Farmer | Pennsylvania |
| 9 | Elizabeth Boyer | 9 | Niece | — | Pennsylvania |
| 10 | Arthur Nelson | 53 | Head | Farmer | N. Carolina |
| 11 | Katherine S Nelson | 28 | Wife | — | New Jersey |
| 12 | Beverly Nelson | 6 | Daughter | — | Pennsylvania |
| 13 | Joseph Nelson | 5 | Son | — | Pennsylvania |
| 14 | Maylon L Nelson | 1 | Son | — | Pennsylvania |
| 15 | Thomas Hughes | 35 | Head | Beater Man | Pennsylvania |
| 16 | Sara O Hughes | 31 | Wife | — | Pennsylvania |
| 17 | Thomas Jr Hughes | 8 | Son | — | Pennsylvania |
| 18 | Albert Hughes | 5 | Son | — | Pennsylvania |
| 19 | William Mendenhall | 20 | Brother-in-law | Farm Helper | Pennsylvania |
| 20 | Harry Lewis | 41 | Head | Farmer | Pennsylvania |
| 21 | Cora O Lewis | 39 | Wife | — | Pennsylvania |
| 22 | Margaret Margaret | 20 | Daughter | Housekeeper | Pennsylvania |
| 23 | Gertrude Lewis THIS PERSON | 17 | Daughter | New Worker | Pennsylvania |
| 24 | Samuel Lewis | 16 | Son | — | Pennsylvania |
| 25 | Cora Lewis | 12 | Daughter | — | Pennsylvania |
| 26 | Edith Lewis | 11 | Daughter | — | Pennsylvania |
| 27 | William Lewis | 9 | Son | — | Pennsylvania |
| 28 | Marian Lewis | 7 | Daughter | — | Pennsylvania |
| 29 | Evelyn Lewis | 4 | Daughter | — | Pennsylvania |
| 30 | James O Lammey | 47 | Head | — | Pennsylvania |
| 31 | Hazel Lammey | 14 | Daughter | — | Pennsylvania |
| 32 | Carrie Lammey | 13 | Daughter | — | Pennsylvania |
| 33 | Elizabeth Lammey | 11 | Daughter | — | Pennsylvania |
| 34 | Isaac T Hall | 47 | Head | Farmer | Pennsylvania |
| 35 | Alice H Hall | 44 | Wife | — | Pennsylvania |
| 36 | Mildred B Hall | 17 | Daughter | — | Pennsylvania |
| 37 | Russell Boyer | 24 | Head | Sales Service | Pennsylvania |
| 38 | Helen Boyer | 20 | Wife | — | Pennsylvania |
| 39 | Maurice Wilworth | 50 | Head | Farmer | Pennsylvania |
| 40 | Lana Ethel Wilworth | 45 | Wife | — | Pennsylvania |
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)