TS
Theodore Smith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Theodore Smith across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Edward & John — first a son (b.~1910), then head of a 5-person household.
Age 20
b. ~1910
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mckeesport City |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Pearl Smith | Daughter | — | 14 | ~1916 |
| Mary Smith | Head | — | 40 | ~1890 |
| Theodore Smith | Son | — | 20 | ~1910 |
| Alex Smith | Son | — | 18 | ~1912 |
| Elmer Smith | Son | — | 16 | ~1914 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 1
Allegheny, Pennsylvania · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 10
Allegheny, Pennsylvania · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 20
Allegheny, Pennsylvania · implied b. ~1910 — 5 household members
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| 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 |
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 Theodore Smith across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Edward Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and mother Catherine Smith (~0.92 confidence) and mother Edna Smith (~0.92 confidence) and mother Mary Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Smith
b. ~1880
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Catherine Smith
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Edna Smith
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mary Smith
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Smith
Son · 1930 · age 20 · b. ~1910 · Pennsylvania
★ You are viewing this record
Sibling
Elmer Smith
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearl Smith
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alex Smith
Sibling · 1930 · age 18
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1966:0692)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Antonis Bernardi | 46 | Head | Engineer | Italy |
| 52 | Annie Bernardi | 33 | Wife | — | Italy |
| 53 | Joseph Bernardi | 15 | Son | — | West Virginia |
| 54 | Patrick Bernardi | 13 | Son | — | Pennsylvania |
| 55 | Dominick Bernardi | 8 | Son | — | Pennsylvania |
| 56 | Attilio Bernardi | 6 | Son | — | Pennsylvania |
| 57 | Rose Bernardi | 5 | Daughter | — | Pennsylvania |
| 58 | Nicola Vaccaro | 49 | Boarder | Laborer | Italy |
| 59 | John Vaccaro | 45 | Boarder | Laborer | Italy |
| 60 | Peter Vaccaro | 51 | Boarder | Laborer | Italy |
| 61 | Rachel Campbell | 34 | Head | — | Pennsylvania |
| 62 | Pauline Campbell | 26 | Brother | Crane Helper | Pennsylvania |
| 63 | Andrew Campbell | 62 | Brother | Crane Helper | Pennsylvania |
| 64 | Joseph Campbell | 77 | Uncle | Retired | Pennsylvania |
| 65 | Stella Stamatopoulos | 21 | Granddaughter | — | Pennsylvania |
| 66 | Georgia Stamatopoulos | 8 | Granddaughter | — | Pennsylvania |
| 67 | Hardy Stamatopoulos | 6 | Grandson | — | Pennsylvania |
| 68 | George W. Jackson | 37 | Head | Assistant Foreman | Pennsylvania |
| 69 | Jessie Jackson | 38 | Wife | — | Pennsylvania |
| 70 | Frederick Jackson | 11 | Son | — | Pennsylvania |
| 71 | Nellie Jackson | 9 | Daughter | — | Pennsylvania |
| 72 | Charles Jackson | 7 | Son | — | Pennsylvania |
| 73 | Stella Jackson | 5 | Daughter | — | Pennsylvania |
| 74 | Doris M. Jackson | 3 | Daughter | — | Pennsylvania |
| 75 | William Jackson | 2 | Son | — | Pennsylvania |
| 76 | George Sr. Jackson | 60 | Father | Barber | Pennsylvania |
| 77 | Mary A. Jackson | 56 | Mother | — | Pennsylvania |
| 78 | Rankin Jackson | 32 | Brother | — | Pennsylvania |
| 79 | James A. Jackson | 20 | Brother | — | Pennsylvania |
| 80 | Norge Jackson | 15 | Sister | — | Pennsylvania |
| 81 | John Williams | 47 | Head | Draftsman | Wales |
| 82 | Sarah M. Williams | 42 | Wife | — | Pennsylvania |
| 83 | William D. Williams | 20 | Son | — | Pennsylvania |
| 84 | John J. Williams | 13 | Son | — | Pennsylvania |
| 85 | Thomas Williams | 12 | Son | — | Pennsylvania |
| 86 | Arthur J. Brown | 35 | Head | — | West Virginia |
| 87 | Virginia Brown | 26 | Wife | — | West Virginia |
| 88 | Thomas Baxter | 35 | Lodger | — | Pennsylvania |
| 89 | Mary E. Smith | 40 | Head | Day Work | Pennsylvania |
| 90 | Theodore Smith THIS PERSON | 20 | Son | — | Pennsylvania |
| 91 | Alex G. Smith | 18 | Son | Shoeshiner | Pennsylvania |
| 92 | Elmer G. Smith | 16 | Son | — | Pennsylvania |
| 93 | Pearl B. Smith | 14 | Daughter | — | Pennsylvania |
| 94 | Emma J. Hill | 52 | Head | — | Pennsylvania |
| 95 | George H. Hill | 30 | Son | Fireman | Pennsylvania |
| 96 | James L. Hill | 16 | Son | — | Pennsylvania |
| 97 | George F. Tucker | 62 | Brother | Retired | Pennsylvania |
| 98 | — | None | — | — | — |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
Pedigree Summary
Theodore + 3 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 1930 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)