HL
Herbert Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Herbert Lewis across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Lewis |
| Given Name | Herbert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Unincorporated place Allegheny Acres 1-8 |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Helper |
| Industry | Trucking |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 50 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Helper |
| Township / Ward | Unincorporated Place Allegheny Acres 18 |
| Est. Birth Year | ~1919 |
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 1940 census.
| Name | Relation to head | Relative to Herbert | Age | Birth yr |
|---|---|---|---|---|
| Robert Lewis | Head | — | 44 | ~1896 |
| Robert Lewis | Son | — | 23 | ~1917 |
| Herbert Lewis | Son | — | 21 | ~1919 |
| Bertha Lewis | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age
Allegheny, Pennsylvania · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 11
Allegheny, Pennsylvania · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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
Allegheny-County, Pennsylvania
Son, age 21
Allegheny-County, Pennsylvania · implied b. ~1919 — 4 household members
| Surname | Lewis |
| Given Name | Herbert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Unincorporated place Allegheny Acres 1-8 |
| 1935 Residence (County) | Allegheny |
| Occupation | Helper |
| Industry | Trucking |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 50 |
| Highest Grade | Hs 1 |
| 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 Herbert Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Lewis (~0.92 confidence) and father Robert Lewis (~0.92 confidence) and mother Bertha Lewis (~0.92 confidence) and mother Bertha Lewis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Lewis
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Robert Lewis
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Bertha Lewis
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Bertha Lewis
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Herbert Lewis
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Robert Lewis
Sibling · 1940 · age 23
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03420-00470)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Griffiths | 18 | daughter | — | Pennsylvania |
| 42 | Phyllis Griffiths | 16 | daughter | — | Pennsylvania |
| 43 | Ruth Griffiths | 14 | daughter | — | Pennsylvania |
| 44 | Ronalda Griffiths | 9 | daughter | — | Pennsylvania |
| 45 | John Griffiths | 20 | brother | Labor | Pennsylvania |
| 46 | William Reed | 51 | head | Brakeman | Virginia |
| 47 | Jewel Reed | 51 | wife | — | Pennsylvania |
| 48 | Albert Porter | 39 | head | Melter | Pennsylvania |
| 49 | Viola Porter | 38 | wife | — | Pennsylvania |
| 50 | Dorothy Porter | 15 | daughter | — | Pennsylvania |
| 51 | Viola Porter | 12 | daughter | — | Pennsylvania |
| 52 | Artie Ilinger | 36 | head | — | Pennsylvania |
| 53 | Roberta Ilinger | 14 | daughter | — | Pennsylvania |
| 54 | William Ilinger | 85 | father | — | Pennsylvania |
| 55 | Mervin Eyer | 32 | head | Mechanic | Pennsylvania |
| 56 | Adelaide Eyer | 31 | wife | — | Pennsylvania |
| 57 | Robert Eyer | 8 | son | — | Pennsylvania |
| 58 | Roy Parker | 32 | head | Mechanic | Pennsylvania |
| 59 | Esther Parker | 27 | wife | — | Pennsylvania |
| 60 | Roy Jr Parker | 7 | son | — | Pennsylvania |
| 61 | Sylvia Parker | 4 | daughter | — | Pennsylvania |
| 62 | Charles Parker | 2 | son | — | Pennsylvania |
| 63 | Robert Lewis | 44 | head | Driver | Pennsylvania |
| 64 | Bertha Lewis | 41 | wife | — | Pennsylvania |
| 65 | Robert Lewis | 23 | son | Labor | Pennsylvania |
| 66 | Herbert Lewis THIS PERSON | 21 | son | Helper | Pennsylvania |
| 67 | Harry Symbala | 37 | head | Painter | Pennsylvania |
| 68 | Helen Symbala | 32 | wife | — | Pennsylvania |
| 69 | Connie Symbala | 16 | daughter | — | Pennsylvania |
| 70 | Patsy Symbala | 8 | daughter | — | Pennsylvania |
| 71 | Maxine Symbala | 3 | daughter | — | Pennsylvania |
| 72 | Homer Hester | 37 | head | Miner | Tennessee |
| 73 | Pearl Hester | 36 | wife | — | West Virginia |
| 74 | Eileen Hester | 12 | daughter | — | Pennsylvania |
| 75 | James Hester | 11 | son | — | Pennsylvania |
| 76 | William Hester | 10 | son | — | Pennsylvania |
| 77 | Wallace Hester | 8 | son | — | Pennsylvania |
| 78 | Doris Hester | 6 | daughter | — | Pennsylvania |
| 79 | Robert Hester | 4 | son | — | Pennsylvania |
| 80 | Howard Hester | 27 | head | Miner | Virginia |
Pedigree Summary
Herbert + 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 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)