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Gertrude Lewis — 1920 US Census Record
Model Tree available1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Gertrude Lewis across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1898), then head of a 4-person household.
Age 22
b. ~1898
Female
Daughter
Born: Ohio
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Lewis |
| Given Name | Gertrude M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Brackenridge Brough |
| Est. Birth Year | ~1898 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Elvira Lewis | Daughter | — | 16 | ~1904 |
| John Lewis | Head | — | 54 | ~1866 |
| Gertrude Lewis | Daughter | — | 22 | ~1898 |
| Mary Lewis | Spouse | — | 52 | ~1868 |
Census Appearances
1900
Allegheny, Pennsylvania
Daughter, age 3
Allegheny, Pennsylvania · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Birth Month | Nov |
| Birth Year | 1897 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1910
Allegheny, Pennsylvania
Daughter, age 12
Allegheny, Pennsylvania · implied b. ~1898 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Gertrude M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Allegheny, Pennsylvania
Daughter, age 22
Allegheny, Pennsylvania · implied b. ~1898 — 4 household members
| Surname | Lewis |
| Given Name | Gertrude M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father John Lewis (~0.92 confidence) and father John Lewis (~0.92 confidence) and mother Mary Lewis (~0.92 confidence) and mother Mary Lewis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Lewis
b. ~1866
Source father
● Household
· direct · ~0.92
Father
John Lewis
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Mary Lewis
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Mary Lewis
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Gertrude Lewis
Daughter · 1920 · age 22 · b. ~1898 · Pennsylvania
★ You are viewing this record
Sibling
Elvira Lewis
Sibling · 1920 · age 16
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 — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
49 people indexed on this census page (ia:1920:14thcensusofpopu1510unit:0103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur R Minder | 23 | Son | Catcher | Pennsylvania |
| 2 | Roy M Minder | 22 | Son | Opener | Pennsylvania |
| 3 | Meryl C Minder | 21 | Son | Laborer | Pennsylvania |
| 4 | Albert D Minder | 20 | Son | Matcher | Pennsylvania |
| 5 | Harry W Minder | 17 | Son | — | Pennsylvania |
| 6 | Velma E Minder | 15 | Daughter | — | Pennsylvania |
| 7 | Ruby E Minder | 13 | Daughter | — | Pennsylvania |
| 8 | Ross H Stewart | 29 | Head | Laborer | Pennsylvania |
| 9 | Viola M Stewart | 22 | Wife | — | Pennsylvania |
| 10 | Iva L Stewart | 4 | Daughter | — | Pennsylvania |
| 11 | Harry A Stewart | 3 | Son | — | Pennsylvania |
| 12 | Paul S Stewart | 1 | Son | — | Pennsylvania |
| 13 | Charles Cummings | 58 | Head | Catcher | Pennsylvania |
| 14 | Annie B Cummings | 51 | Wife | — | Pennsylvania |
| 15 | John A Lowden | 44 | Head | Miner | Pennsylvania |
| 16 | Blanch M Lowden | 27 | Wife | — | Pennsylvania |
| 17 | Marie N Lowden | 11 | Daughter | — | Pennsylvania |
| 18 | John H Lowden | 7 | Son | — | Pennsylvania |
| 19 | George Bright | 72 | Head | — | Poland |
| 20 | Steve Bright | 30 | Son | Laborer | Pennsylvania |
| 21 | Harry R Deeds | 45 | Head | Laborer | Pennsylvania |
| 22 | Florence L Deeds | 42 | Wife | — | Pennsylvania |
| 23 | George H George | 59 | Head | — | Wurttemberg |
| 24 | Elizabeth George | 60 | Wife | — | Pennsylvania |
| 25 | Lenora D George | 29 | Daughter | Saleslady | Pennsylvania |
| 26 | Annie C George | 27 | Daughter | Saleslady | Pennsylvania |
| 27 | Frederick W George | 22 | Son | Police | Pennsylvania |
| 28 | Elizabeth L George | 17 | Daughter | — | Pennsylvania |
| 29 | Isaac A Shaffer | 43 | Head | Roller | Pennsylvania |
| 30 | Anna M Shaffer | 43 | Wife | — | Pennsylvania |
| 31 | Alvin R Flyer | 40 | Head | Rougher | Pennsylvania |
| 32 | Anna C Flyer | 35 | Wife | — | Pennsylvania |
| 33 | Joseph B Cowan | 40 | Head | Rougher | Pennsylvania |
| 34 | Emily E Cowan | 35 | Wife | — | England |
| 35 | Raymond B Cowan | 11 | Son | — | Pennsylvania |
| 36 | Edna B Cowan | 8 | Daughter | — | Pennsylvania |
| 37 | Jean P Cowan | 3 | Daughter | — | Pennsylvania |
| 38 | Louis H Cowan | 36 | Head | Roller | Pennsylvania |
| 39 | Etta S Cowan | 30 | Wife | — | Pennsylvania |
| 40 | Everett E Cowan | 4 | Son | — | Pennsylvania |
| 41 | Fred Wagner | 55 | Head | — | Berlin Ger |
| 42 | Jacob Walker | 26 | Head | Catcher | Pennsylvania |
| 43 | Mable A Walker | 19 | Wife | — | Pennsylvania |
| 44 | John E Lewis | 54 | Head | Roller | Wales |
| 45 | Mary C Lewis | 52 | Wife | — | Pennsylvania |
| 46 | Gertrude M Lewis THIS PERSON | 22 | Daughter | — | Ohio |
| 47 | Elvira M Lewis | 16 | Daughter | — | Pennsylvania |
| 48 | George H Jack | 60 | Head | Heater | Pennsylvania |
| 49 | Minnie M Jack | 43 | Wife | — | Pennsylvania |
Pedigree Summary
Gertrude + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)