DS
David Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Luzerne-County, Pennsylvania
Our Model Tree links this David Smith across the 1920, 1930 and 1940 US Censuses in Luzerne-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Edward & Henry — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Luzerne-County, Pennsylvania |
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Nanticoke City |
| 1935 Residence (County) | Luzerne |
| Additional Details | |
| Highest Grade | C-3 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Nanticoke City |
| Est. Birth Year | ~1918 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Arrena Smith | Daughter | — | 24 | ~1916 |
| Edward Smith | Head | — | 49 | ~1891 |
| Elizabeth Barbaras | Other | — | 84 | ~1856 |
| David Smith | Son | — | 22 | ~1918 |
| Amelia Smith | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Luzerne, Pennsylvania
Son, age 2
Luzerne, Pennsylvania · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Luzerne, Pennsylvania
Son, age 12
Luzerne, Pennsylvania · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Luzerne-County, Pennsylvania
Son, age 22
Luzerne-County, Pennsylvania · implied b. ~1918 — 5 household members
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Nanticoke City |
| 1935 Residence (County) | Luzerne |
| Highest Grade | C-3 |
| 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 Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Smith (~0.92 confidence) and father Henry Smith (~0.92 confidence) and father Edward Smith (~0.92 confidence) and mother Alberta Smith (~0.92 confidence) and mother Amelia Smith (~0.92 confidence) and mother Amelia Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Smith
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Henry Smith
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Edward Smith
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Alberta Smith
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Amelia Smith
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Amelia Smith
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Smith
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Arrena Smith
Sibling · 1940 · age 24
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 — Luzerne-County, Pennsylvania
Open full size
1940 US Federal Census — Luzerne-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03556-00459)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Kenjorski | 5 | Son | — | Pennsylvania |
| 42 | Edward Smith | 49 | Head | Superintendent | Pennsylvania |
| 43 | Amelia Smith | 49 | Wife | — | Pennsylvania |
| 44 | Arrena Smith | 24 | Daughter | Jr. Visitor | Pennsylvania |
| 45 | David Smith THIS PERSON | 22 | Son | — | Pennsylvania |
| 46 | Elizabeth Barbaras | 84 | Aunt | — | Michigan |
| 47 | Russell James | 41 | Head | Tracklayer | Pennsylvania |
| 48 | Ruth James | 33 | Wife | — | Pennsylvania |
| 49 | Lois James | 9 | Daughter | — | Pennsylvania |
| 50 | Sally Ann James | 6 | Daughter | — | Pennsylvania |
| 51 | Mother Amelia | None | F | — | — |
| 52 | Emil Trandiski | 66 | Head | — | Germany |
| 53 | Anna Trandiski | 66 | Wife | — | Germany |
| 54 | Anna Trandiski | 22 | Daughter | Spinner | Pennsylvania |
| 55 | Joseph Hocken | 63 | Head | Fire Boss | England |
| 56 | Eleanor Hocken | 56 | Wife | — | Pennsylvania |
| 57 | Jean Hocken | 15 | Daughter | — | Pennsylvania |
| 58 | William Beynon | 50 | Boarder | — | Pennsylvania |
| 59 | Frank Toback | 43 | Head | Laborer | Pennsylvania |
| 60 | Martha Toback | 43 | Wife | — | Pennsylvania |
| 61 | Annette Toback | 25 | Daughter | Nurse | Pennsylvania |
| 62 | Charles Toback | 22 | Son | Laborer | Pennsylvania |
| 63 | Clara Toback | 21 | Daughter | New Worker | Pennsylvania |
| 64 | Donald Toback | 7 | Son | — | Pennsylvania |
| 65 | Mother Johanna | None | F | 0 | — |
| 66 | Bert Harris | 38 | Head | Miner | England |
| 67 | Hilda Harris | 36 | Wife | — | England |
| 68 | Jean Harris | 16 | Daughter | — | England |
| 69 | John Harris | 13 | Son | — | England |
| 70 | Milton Harris | 10 | Son | — | Pennsylvania |
| 71 | Alfred Prosser | 41 | Head | Miner | England |
| 72 | Beatrice Prosser | 41 | Wife | — | Wales |
| 73 | Noreen Prosser | 8 | Daughter | — | Pennsylvania |
| 74 | Brother William | None | M | 0 | — |
| 75 | George Machung | 62 | Head | Laborer | Poland |
| 76 | Rose Machung | 57 | Wife | Laborer | Poland |
| 77 | Stanley Machung | 34 | Son | Laborer | Pennsylvania |
| 78 | Alice Machung | 29 | Daughter | Teacher | Pennsylvania |
| 79 | Leo Machung | 25 | Son | Laborer | Pennsylvania |
| 80 | Jennie Machung | 22 | Daughter | New Worker | Pennsylvania |
Pedigree Summary
David + 1 sibling
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)