ES
Elmer Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Elmer Smith across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Alphonso & David — first a head (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Smith |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mifflin Township |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Mifflin Township |
| Est. Birth Year | ~1886 |
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 Elmer | Age | Birth yr |
|---|---|---|---|---|
| Corrine Smith | Daughter | — | 9 | ~1931 |
| Elmer Smith | Head | — | 54 | ~1886 |
| Francis Smith | Son | — | 2 | ~1938 |
| Nora Smith | Spouse | — | 56 | ~1884 |
Census Appearances
1900
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1886 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Elmer R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | May |
| Birth Year | 1886 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | at School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Son, age 24
Allegheny, Pennsylvania · implied b. ~1886 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Elmer R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Blacksmith |
| Industry | Coal mine |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 36
Allegheny, Pennsylvania · implied b. ~1884 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Occupation | Blacksmith |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 45
Allegheny, Pennsylvania · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ellmer R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 54
Allegheny-County, Pennsylvania · implied b. ~1886 — 4 household members
| Surname | Smith |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mifflin Township |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 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 Elmer Smith across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alphonso Smith (~0.92 confidence) and father David Smith (~0.92 confidence) and mother Clara Smith (~0.92 confidence) and father David Smith (~0.92 confidence) and father David Smith (~0.92 confidence) and mother Margaret Smith (~0.92 confidence) and mother Margaret Smith (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alphonso Smith
b. ~1859
Source father
● Household
· direct · ~0.92
Father
David Smith
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Clara Smith
b. ~1860
Source mother
● Household
· direct · ~0.92
Father
David Smith
b. ~1861
Source father
● Household
· direct · ~0.92
Father
David Smith
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Margaret Smith
b. ~1863
Source mother
● Household
· direct · ~0.92
Mother
Margaret Smith
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Elmer Smith
Head · 1940 · age 54 · b. ~1886 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
12 people indexed on this census page (nara:1940:m-t0627-03410-00649)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl Sikorski | 18 | Nephew | Laborer | Pennsylvania |
| 2 | James Mcconnelly | 19 | Son | Farmer | Pennsylvania |
| 3 | Elmer Smith THIS PERSON | 54 | Head | Laborer | Pennsylvania |
| 4 | Nora Smith | 56 | Wife | — | England |
| 5 | Corrine Smith | 9 | Daughter | — | Pennsylvania |
| 6 | Francis Smith | 2 | Son | — | Pennsylvania |
| 7 | Samuel Little | 53 | Head | Watchman | Pennsylvania |
| 8 | Sarah Little | 49 | Wife | — | England |
| 9 | Lela Belle Little | 11 | Daughter | — | Pennsylvania |
| 10 | Bernard Blank | 38 | Head | Laborer | Pennsylvania |
| 11 | Grace C. Blank | 37 | Wife | — | Pennsylvania |
| 12 | Betty Blank | 12 | Daughter | — | Pennsylvania |
Pedigree Summary
Elmer
Gen 1 · 7 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)