SL
Samuel Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Pennsylvania
Our Model Tree links this Samuel Lewis across the 1910, 1920, 1930 and 1940 US Censuses in Washington-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a son (b.~1910), then head of a 6-person household.
Age 30
b. ~1910
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Pennsylvania |
| Surname | Lewis |
| Given Name | Samuel |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Canonsburg |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Loader |
| Industry | Coal Co. |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 454 |
| Highest Grade | 5 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Loader |
| Township / Ward | North Strabane |
| Est. Birth Year | ~1910 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Samuel | Age | Birth yr |
|---|---|---|---|---|
| David Lewis | Son | — | 34 | ~1906 |
| Stella Lewis | Daughter | — | 22 | ~1918 |
| Dolores Lewis | Daughter | — | 14 | ~1926 |
| Thomas Lewis | Head | — | 69 | ~1871 |
| Samuel Lewis | Son | — | 30 | ~1910 |
| Mary Lewis | Spouse | — | 67 | ~1873 |
Census Appearances
1910
Washington, Pennsylvania
Son, age
Washington, Pennsylvania · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Samuel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Washington, Pennsylvania
Son, age 10
Washington, Pennsylvania · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Samuel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Washington, Pennsylvania
Son, age 20
Washington, Pennsylvania · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Samuel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | Loader |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Washington-County, Pennsylvania
Son, age 30
Washington-County, Pennsylvania · implied b. ~1910 — 6 household members
| Surname | Lewis |
| Given Name | Samuel |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Canonsburg |
| 1935 Residence (County) | Washington |
| Occupation | Loader |
| Industry | Coal Co. |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 454 |
| Highest Grade | 5 |
| 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 Samuel Lewis across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Lewis (~0.92 confidence) and father Thomas Lewis (~0.92 confidence) and father Thomas Lewis (~0.92 confidence) and mother Mary Lewis (~0.92 confidence) and mother Mary Lewis (~0.92 confidence) and mother Mary Lewis (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Lewis
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Thomas Lewis
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Thomas Lewis
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Lewis
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Mary Lewis
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Mary Lewis
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Samuel Lewis
Son · 1940 · age 30 · b. ~1910 · Pennsylvania
★ You are viewing this record
Sibling
Stella Lewis
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolores Lewis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Lewis
Sibling · 1940 · age 34
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 — Washington-County, Pennsylvania
Open full size
1940 US Federal Census — Washington-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03625-00206)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Florence Kearney | 36 | daughter | — | Pennsylvania |
| 42 | Dorothy Kearney | 15 | granddaughter | — | Pennsylvania |
| 43 | Howard Kearney | 8 | grandson | — | Pennsylvania |
| 44 | Frank Grego | 40 | head | Farming | Italy |
| 45 | Lucy Grego | 35 | wife | — | Pennsylvania |
| 46 | Frank Jr. Grego | 17 | son | Farming | Pennsylvania |
| 47 | Katherine Grego | 11 | daughter | — | Pennsylvania |
| 48 | Wallace Grego | 7 | son | — | Pennsylvania |
| 49 | H. A. Donaldson | 61 | head | Draftsman | Pennsylvania |
| 50 | Edith Donaldson | 52 | wife | — | Pennsylvania |
| 51 | William Donaldson | 24 | son | Aircraft Mech. | Pennsylvania |
| 52 | Ray Cummins | 22 | hired help | Farmer | West Virginia |
| 53 | Thomas Lewis | 69 | head | Farming | Pennsylvania |
| 54 | Mary Lewis | 67 | wife | — | Ohio |
| 55 | David Lewis | 34 | son | Farming | Pennsylvania |
| 56 | Samuel Lewis THIS PERSON | 30 | son | Loader | Pennsylvania |
| 57 | Stella Lewis | 22 | daughter | Office Girl | Pennsylvania |
| 58 | Dolores Lewis | 14 | daughter | — | Pennsylvania |
| 59 | Wallace Hamilton | 57 | head | Farming | Pennsylvania |
| 60 | Angeline Hamilton | 54 | wife | — | Pennsylvania |
| 61 | Harold Hamilton | 26 | son | Metallurgist | Pennsylvania |
| 62 | Doris Patterson | 10 | ward | — | Pennsylvania |
| 63 | Hubert Patterson | 7 | ward | — | Pennsylvania |
| 64 | Francis Patterson | 4 | ward | — | Pennsylvania |
| 65 | George Devore | 54 | head | Farming | Pennsylvania |
| 66 | Viola Devore | 55 | wife | — | Pennsylvania |
| 67 | Sara Devore | 30 | daughter | — | Pennsylvania |
| 68 | Clarence Devore | 23 | son | Salesman | Pennsylvania |
| 69 | Herbert Devore | 21 | son | Inspector | Pennsylvania |
| 70 | Lucy Devore | 18 | daughter | — | Pennsylvania |
| 71 | Lawrence Miller | 37 | hired help | Farming | Pennsylvania |
| 72 | Leslie Devore | 46 | head | Farming | Pennsylvania |
| 73 | Elizabeth Devore | 47 | wife | — | Pennsylvania |
| 74 | Naomi Devore | 9 | daughter | — | Pennsylvania |
| 75 | Lewis Linn | 33 | hired help | Farming | Pennsylvania |
| 76 | Raymond Devore | 21 | head | Salesman | Pennsylvania |
| 77 | Mildred Devore | 23 | wife | — | Pennsylvania |
| 78 | Melvin Mccartney | 65 | head | Laborer | Pennsylvania |
| 79 | Chas. Mccartney | 54 | brother | — | Pennsylvania |
| 80 | Marie Mccartney | 58 | sister | — | New York |
Related Census Records
Pedigree Summary
Samuel + 3 siblings
Gen 1 · 6 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)