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David Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Indiana-County, Pennsylvania
Our Model Tree links this David Lewis across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Indiana-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Elisabeth — first a head (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Indiana-County, Pennsylvania |
| Surname | Lewis |
| Given Name | David A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Smicksburg Borough |
| 1935 Residence (County) | Indiana |
| Additional Details | |
| Occupation | Laborer |
| Industry | Highway Construction |
| Class of Worker | GW |
| Hours Worked | 24 |
| Income (1939) | 375 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Smicksburg Borough |
| Est. Birth Year | ~1900 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| David Lewis | Head | — | 40 | ~1900 |
| Mary Felix | Other | — | 15 | ~1925 |
| Lawrence Felix | Son | — | 14 | ~1926 |
| Annie Lewis | Spouse | — | 30 | ~1910 |
Census Appearances
1900
Indiana, Pennsylvania
Son, age
Indiana, Pennsylvania · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Davis L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | Apr |
| Birth Year | 1900 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Indiana, Pennsylvania
Son, age 11
Indiana, Pennsylvania · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David S |
| 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 | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Indiana, Pennsylvania
Son, age 20
Indiana, Pennsylvania · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Indiana, Pennsylvania
Son, age 30
Indiana, Pennsylvania · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Indiana-County, Pennsylvania
Head, age 40
Indiana-County, Pennsylvania · implied b. ~1900 — 4 household members
| Surname | Lewis |
| Given Name | David A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Smicksburg Borough |
| 1935 Residence (County) | Indiana |
| Occupation | Laborer |
| Industry | Highway Construction |
| Class of Worker | GW |
| Hours Worked | 24 |
| Income (1939) | 375 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| 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 David Lewis across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Lewis (~0.84 confidence) and mother Elisabeth Lewis (~0.84 confidence) and father Clark Lewis (~0.92 confidence) and mother Sarah Lewis (~0.92 confidence) and father Joshua Lewis (~0.92 confidence) and father Willis Lewis (~0.92 confidence) and father Joshua Lewis (~0.92 confidence) and mother Margaret Lewis (~0.92 confidence) and mother Margaret Lewis (~0.92 confidence) and mother Catharine Lewis (~0.92 confidence). The pedigree spans 2 generations with 10 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Father
John Lewis
b. ~1826
Source mother>father
● Household
· direct · ~0.84
Mother
Elisabeth Lewis
b. ~1828
Source mother>mother
● Household
· direct · ~0.84
Father
Clark Lewis
b. ~1851
Source father
● Household
· direct · ~0.92
Mother
Sarah Lewis
b. ~1857
Source mother
● Household
· direct · ~0.92
Father
Joshua Lewis
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Willis Lewis
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Joshua Lewis
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Margaret Lewis
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Margaret Lewis
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Catharine Lewis
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Lewis
Head · 1940 · age 40 · b. ~1900 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Indiana-County, Pennsylvania
Open full size
1940 US Federal Census — Indiana-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03518-00484)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David Edmunds | 82 | Head | — | Wales |
| 2 | Tillie R. Edmunds | 75 | Wife | — | Pennsylvania |
| 3 | Charles C. Beck | 50 | Head | Time Keeper | Pennsylvania |
| 4 | Irene L. Beck | 52 | Wife | — | Pennsylvania |
| 5 | W. Dick Beck | 21 | Son | New Worker | Pennsylvania |
| 6 | Turney E. Beck | 19 | Son | — | Pennsylvania |
| 7 | Ralph K. Beck | 13 | Son | — | Pennsylvania |
| 8 | Charles Stiteler | 60 | Head | — | Pennsylvania |
| 9 | Minnie Stiteler | 59 | Wife | — | Pennsylvania |
| 10 | Carl G. Stiteler | 27 | Son | Laborer | Pennsylvania |
| 11 | Dean W. Stiteler | 25 | Son | Laborer | Pennsylvania |
| 12 | Earl Stiteler | 19 | Son | Tool Checker | Pennsylvania |
| 13 | Robert B. Stiteler | 12 | Grandson | — | Pennsylvania |
| 14 | Ruth I. Stiteler | 11 | Granddaughter | — | Pennsylvania |
| 15 | Daniel R. Swartz | 67 | Head | Laborer | Pennsylvania |
| 16 | Rosanna C. Swartz | 63 | Wife | — | Pennsylvania |
| 17 | Betty Rose Swartz | 14 | Daughter | — | Pennsylvania |
| 18 | Daniel F. Swartz | 11 | Son | — | Pennsylvania |
| 19 | Harvey A. Mauk | 42 | Head | — | Pennsylvania |
| 20 | Ethel M. Mauk | 40 | Wife | — | Pennsylvania |
| 21 | Betty J. Strawlaugh | 15 | Neice | — | Pennsylvania |
| 22 | B. Clarence Stiteler | 57 | Head | Laborer | Pennsylvania |
| 23 | Margaret B. Stiteler | 57 | Wife | — | Pennsylvania |
| 24 | Betty Jane Stiteler | 20 | Daughter | Saleslady | Pennsylvania |
| 25 | Annie Irwin | 75 | Head | — | Pennsylvania |
| 26 | David A. Lewis THIS PERSON | 40 | Head | Laborer | Pennsylvania |
| 27 | Annie R. Lewis | 30 | Wife | — | Massachusetts |
| 28 | Mary Ann Felix | 15 | Boarder | — | Pennsylvania |
| 29 | Lawrence Felix | 14 | Son | — | Pennsylvania |
| 30 | John B. Mccormick | 37 | Head | Driller | Pennsylvania |
| 31 | Margaret E. Mccormick | 38 | Wife | — | Pennsylvania |
| 32 | Helen R. Mccormick | 12 | Daughter | — | Pennsylvania |
| 33 | Thomas A. Mccormick | 10 | Son | — | Ohio |
| 34 | Bennett L. Mccormick | 6 | Son | — | Pennsylvania |
| 35 | Carol Ruth Mccormick | 2 | Daughter | — | Pennsylvania |
| 36 | Edward E. Sweeney | 38 | Head | Miner | Pennsylvania |
| 37 | Ida V. Sweeney | 31 | Wife | — | Pennsylvania |
| 38 | James A. Sweeney | 14 | Son | — | Pennsylvania |
| 39 | Edward L. Sweeney | 12 | Son | — | Pennsylvania |
| 40 | Monabell B. Sweeney | 9 | Daughter | — | Pennsylvania |
Pedigree Summary
David
Gen 1 · 8 parents
~0.92
Gen 2 · 2 grandparents
~0.84
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)