KS
Katherine Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Katherine Smith across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Alfred — first a spouse (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Female
Spouse
Born: Penna
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Smith |
| Given Name | Katherine |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Penna |
| 1935 Residence (City) | Phila. |
| 1935 Residence (County) | Phila. |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | Phila |
| Est. Birth Year | ~1913 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Edith Smith | Daughter | — | 6 | ~1934 |
| William Smith | Head | — | 43 | ~1897 |
| Katherine Smith | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Philadelphia, Pennsylvania
Daughter, age 6
Philadelphia, Pennsylvania · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
Daughter, age 16
Philadelphia, Pennsylvania · implied b. ~1914 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Kathryn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Occupation | Stenographer |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Spouse, age 27
Philadelphia-County, Pennsylvania · implied b. ~1913 — 3 household members
| Surname | Smith |
| Given Name | Katherine |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Penna |
| 1935 Residence (City) | Phila. |
| 1935 Residence (County) | Phila. |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Katherine Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Smith (~0.92 confidence) and father Alfred Smith (~0.92 confidence) and mother Eleanor Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Smith
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Alfred Smith
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Eleanor Smith
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Katherine Smith
Spouse · 1940 · age 27 · b. ~1913 · 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03737-00744)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rebecca Feingold | 59 | Wife | — | Austria |
| 2 | Charles Alber | 60 | Head | Janitor | Germany |
| 3 | Frederick Alber | 34 | Son | Furniture Polisher | Penna |
| 4 | Sarah Connell | 67 | Head | — | Penna |
| 5 | William Connell | 34 | Son | Surveyor | Penna |
| 6 | John Connell | 31 | Son | Salesman | Penna |
| 7 | William Connell | 26 | Son | Crane Operator | Penna |
| 8 | Ruth Connell | 25 | Daughter | — | Penna |
| 9 | James Connell | 5 | Son | — | Penna |
| 10 | William Connell | 5 | Son | — | Penna |
| 11 | Joseph N. Reel | 45 | Head | Machinist | Mass |
| 12 | Violet Reel | 45 | Wife | — | Canada |
| 13 | Pauline V. Reel | 11 | Daughter | — | Mass |
| 14 | John G. Helmling | 70 | Head | Foreman | Germany |
| 15 | Pauline Helmling | 68 | Wife | — | Penna |
| 16 | Jack Layer | 41 | Head | Patrolman | Penna |
| 17 | Marie Layer | 35 | Wife | — | Penna |
| 18 | Dolores Layer | 12 | Daughter | — | Penna |
| 19 | John B. Layer | 9 | Son | — | Penna |
| 20 | Ella Mcmanus | 64 | Mother | — | Penna |
| 21 | Earl P. Bogart | 28 | Head | Ordinary Laborer | Penna |
| 22 | Mary P. Bogart | 20 | Wife | — | Penna |
| 23 | Evelyn Bogart | 3 | Daughter | — | Penna |
| 24 | Arlington Bogart | 2 | Son | — | Penna |
| 25 | John Farrell | 46 | Head | Ordinary Laborer | Penna |
| 26 | Jennie Farrell | 38 | Wife | — | Virginia |
| 27 | Thomas Macario | 41 | Head | Electrician | Penna |
| 28 | Marie Macario | 37 | Wife | — | Penna |
| 29 | Marie Macario | 17 | Daughter | New Worker | Penna |
| 30 | Thomas Macario | 13 | Son | — | Penna |
| 31 | Leonard Macario | 7 | Son | — | Penna |
| 32 | William Smith | 43 | Head | Carpenter | Penna |
| 33 | Katherine Smith THIS PERSON | 27 | Wife | — | Penna |
| 34 | Edith Smith | 6 | Daughter | — | Penna |
| 35 | Chris P. Wilhelm | 42 | Head | Chauffeur & Undertaker | Penna |
| 36 | Sarah H. Wilhelm | 36 | Wife | — | Penna |
| 37 | Chris H. Wilhelm | 5 | Son | — | Penna |
| 38 | Sarah H. Wilhelm | 5 | Daughter | — | Penna |
| 39 | James P. Wilhelm | 3 | Son | — | Penna |
Related Census Records
Pedigree Summary
Katherine
Gen 1 · 3 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)