TS
Theodore Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Theodore Smith across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Albert & Elizabeth — first a head (b.~1904), then head of a 5-person household.
Age 36
b. ~1904
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Ship Fitter |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 344 |
| Highest Grade | No 4 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Ship Fitter |
| Township / Ward | Parkside Borough |
| Est. Birth Year | ~1904 |
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 Theodore | Age | Birth yr |
|---|---|---|---|---|
| Olive Smith | Daughter | — | 7 | ~1933 |
| Theodore Smith | Head | — | 36 | ~1904 |
| M Henia | Other | — | 42 | ~1898 |
| Elizabeth Ashworth | Other | — | 86 | ~1854 |
| Eunice Smith | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Delaware, Pennsylvania
Son, age 17
Delaware, Pennsylvania · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Delaware, Pennsylvania
Other, age 26
Delaware, Pennsylvania · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 20 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | England |
| Occupation | Agent |
| Industry | Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Head, age 36
Delaware-County, Pennsylvania · implied b. ~1904 — 5 household members
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Occupation | Ship Fitter |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 344 |
| Highest Grade | No 4 |
| 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 Theodore Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Smith (~0.92 confidence) and mother Elizabeth Smith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Smith
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Smith
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Smith
Head · 1940 · age 36 · b. ~1904 · 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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03494-00489)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Doris E. Tindall | 14 | Daughter | — | Pennsylvania |
| 2 | Barbara Tindall | 82 | Mother | — | Ohio |
| 3 | Robert Stevens | 14 | Border | — | Washington D.C. |
| 4 | Roy L. Stevens | 39 | Border | Salesman | Indiana |
| 5 | Alfred N. Funk | 66 | Head | Machinist | Pennsylvania |
| 6 | Lottie Funk | 69 | Wife | — | Pennsylvania |
| 7 | Edna Funk | 34 | Daughter | Weaver | Pennsylvania |
| 8 | John Funk | 31 | Son | Plumber | Ohio |
| 9 | Fred H. Meith | 48 | Head | Switchboard Operator | Pennsylvania |
| 10 | Mary C. Meith | 47 | Wife | — | Maryland |
| 11 | Fred Jr. Meith | 11 | Son | — | Pennsylvania |
| 12 | Isidor Goldberg | 42 | Head | Merchant | Russia |
| 13 | Mary Goldberg | 41 | Wife | — | Russia |
| 14 | Joseph Goldberg | 17 | Son | — | Pennsylvania |
| 15 | Selma Goldberg | 13 | Daughter | — | Pennsylvania |
| 16 | Louis Goldberg | 20 | Son | Grocer | Pennsylvania |
| 17 | Freda Goldberg | 20 | Daughter-in-law | — | Pennsylvania |
| 18 | Steve Torhan | 29 | Head | Machinist | Ohio |
| 19 | Ann Torhan | 22 | Wife | — | Pennsylvania |
| 20 | John Ruhl | 25 | Head | Clerk | Pennsylvania |
| 21 | Berenice Ruhl | 23 | Wife | — | Virginia |
| 22 | Brent H. Ruhl | 1 | Son | — | Pennsylvania |
| 23 | William H. Young | 48 | Head | Plumber | Pennsylvania |
| 24 | Alice Young | 42 | Wife | — | Pennsylvania |
| 25 | Harry F. Pierce | 71 | Father-in-law | — | Pennsylvania |
| 26 | Martin Mcnicholas | 67 | Head | Molder | Free State Ireland |
| 27 | Bridget Mcnicholas | 65 | Wife | — | Northern Ireland |
| 28 | Catherine Mcnicholas | 29 | Daughter | Typist | Pennsylvania |
| 29 | Mary Jane Mcnicholas | 11 | Daughter | — | Pennsylvania |
| 30 | Mildred Mcnicholas | 10 | Daughter | — | Pennsylvania |
| 31 | Timothy Mcnicholas | 9 | Grandson | — | Pennsylvania |
| 32 | Theodore Smith THIS PERSON | 36 | Head | Ship Fitter | Pennsylvania |
| 33 | Eunice Smith | 36 | Wife | — | Pennsylvania |
| 34 | Olive Smith | 7 | Daughter | — | Pennsylvania |
| 35 | Elizabeth Ashworth | 86 | Mother-in-law | — | England |
| 36 | M. Curtis Henia | 42 | Boarder | Boy Tender | Virginia |
| 37 | Mary C. Nelson | 77 | Head | — | Scotland |
| 38 | Margaret J. Nelson | 37 | Daughter | — | Delaware |
| 39 | Edna Nelson | 33 | Daughter | — | Delaware |
Pedigree Summary
Theodore
Gen 1 · 2 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)