JL
Joseph Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Joseph Lewis across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Jacob & Sarah — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Lewis |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | South Side Allegheny |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H 2 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Castle Shannon |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| James Lewis | Head | — | 46 | ~1894 |
| Joseph Lewis | Son | — | 26 | ~1914 |
| William Lewis | Son | — | 19 | ~1921 |
| James Lewis | Son | — | 21 | ~1919 |
| Anna Lewis | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 5
Allegheny, Pennsylvania · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| 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 16
Allegheny, Pennsylvania · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Joseph |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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 26
Allegheny-County, Pennsylvania · implied b. ~1914 — 5 household members
| Surname | Lewis |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | South Side Allegheny |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H 2 |
| 1935 Residence | Pennsylvania |
| 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 Joseph Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jacob Lewis (~0.92 confidence) and mother Sarah Lewis (~0.92 confidence) and father James Lewis (~0.92 confidence) and father James Lewis (~0.92 confidence) and mother Anna Lewis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Lewis
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Sarah Lewis
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
James Lewis
b. ~1893
Source father
● Household
· direct · ~0.92
Father
James Lewis
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Anna Lewis
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Lewis
Son · 1940 · age 26 · b. ~1914 · Pennsylvania
★ You are viewing this record
Sibling
William Lewis
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Lewis
Sibling · 1940 · age 21
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-t0627-03400-00040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Hoppl|Hoppe | 5 | Daughter | — | Pennsylvania |
| 42 | Frank Kroboth | 36 | Head | Truck Driver | Pennsylvania |
| 43 | Blanche Kroboth | 35 | Wife | — | Pennsylvania |
| 44 | Gladys Kroboth | 7 | Daughter | — | Pennsylvania |
| 45 | Frank Deresick | 29 | Lodger | Laborer | Pennsylvania |
| 46 | Blanche Farmer | 50 | Head | — | New York |
| 47 | Edward Farmer | 25 | Son | Truck Driver | Pennsylvania |
| 48 | Genevieve A. Farmer | 24 | Wife | — | Pennsylvania |
| 49 | Paul Babrick | 37 | Lodger | Shearer | Pennsylvania |
| 50 | Ralph Petri | 21 | Head | Truck Driver | Pennsylvania |
| 51 | Emma Petri | 22 | Wife | — | Pennsylvania |
| 52 | Ralph Jr. Petri | 0 | Son | — | Pennsylvania |
| 53 | Mary Fielder | 76 | Head | — | Germany |
| 54 | Adolph Horvings | 26 | Head | Civil Engineer | Pennsylvania |
| 55 | Anna Horvings | 24 | Wife | — | Pennsylvania |
| 56 | Barbara Horvings | 3 | Daughter | — | Pennsylvania |
| 57 | William Horvings | 1 | Son | — | Pennsylvania |
| 58 | Adrian Traynor | 30 | Head | Laborer | Pennsylvania |
| 59 | Clara Traynor | 22 | Wife | — | Pennsylvania |
| 60 | Thomas Traynor | 0 | Son | — | Pennsylvania |
| 61 | George Jr. Hancock | 36 | Head | Seaman | Czechoslovakia |
| 62 | Clara M. Hancock | 35 | Wife | — | Pennsylvania |
| 63 | George Jr. Hancock | 12 | Son | — | Pennsylvania |
| 64 | James Lewis | 46 | Head | — | Pennsylvania |
| 65 | Anna Lewis | 44 | Wife | — | Pennsylvania |
| 66 | Joseph Lewis THIS PERSON | 26 | Son | Laborer | Pennsylvania |
| 67 | James Jr. Lewis | 21 | Son | — | Pennsylvania |
| 68 | William Lewis | 19 | Son | — | Pennsylvania |
| 69 | Harold Neal | 35 | Head | Auto Mechanic | Ohio |
| 70 | Zella Neal | 31 | Wife | — | Pennsylvania |
| 71 | Geraldine Neal | 11 | Daughter | — | Pennsylvania |
| 72 | Sally Lou Neal | 9 | Daughter | — | Pennsylvania |
| 73 | Bonnie Neal | 7 | Daughter | — | Pennsylvania |
| 74 | Gail Neal | 5 | Daughter | — | Pennsylvania |
| 75 | Charles Lukitch | 50 | Head | Laborer | Hungary |
| 76 | Sophia Lukitch | 43 | Wife | — | Hungary |
| 77 | Carl Lukitch | 22 | Son | Laborer | Pennsylvania |
| 78 | Walter Lukitch | 21 | Son | Laborer | Pennsylvania |
| 79 | Theresa Lukitch | 8 | Daughter | — | Pennsylvania |
| 80 | Thomas Carney | 33 | Head | Laborer | Pennsylvania |
Pedigree Summary
Joseph + 2 siblings
Gen 1 · 5 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)