AS
Anna Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Anna Smith across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1902), then head of a 5-person household.
Age 38
b. ~1902
Female
Daughter
Born: Scotland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Smith |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Wilkinsburg |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Clerk |
| Industry | Westinghouse |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Clerk |
| Township / Ward | Wilkinsburg |
| Est. Birth Year | ~1902 |
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 Anna | Age | Birth yr |
|---|---|---|---|---|
| Anna Smith | Daughter | — | 38 | ~1902 |
| Sally Smith | Daughter | — | 27 | ~1913 |
| John Smith | Head | — | 65 | ~1875 |
| John Smith | Son | — | 21 | ~1919 |
| Catherine Smith | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 17
Allegheny, Pennsylvania · implied b. ~1903 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1911 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Electric Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Allegheny, Pennsylvania
Daughter, age 27
Allegheny, Pennsylvania · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1910 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Mfg Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Allegheny-County, Pennsylvania
Daughter, age 38
Allegheny-County, Pennsylvania · implied b. ~1902 — 5 household members
| Surname | Smith |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Wilkinsburg |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Occupation | Clerk |
| Industry | Westinghouse |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Anna 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 John Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and mother Catherine Smith (~0.92 confidence) and mother Catherine Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Smith
b. ~1874
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Catherine Smith
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Catherine Smith
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Anna Smith
Daughter · 1940 · age 38 · b. ~1902 · Pennsylvania
★ You are viewing this record
Sibling
Sally Smith
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Smith
Sibling · 1940 · age 21
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03421-00588)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mae Scott | 41 | Lodger | Cashier | Penna |
| 42 | John Michaels | 69 | Hired man | — | Penna |
| 43 | Forrest Pruitt | 29 | Head | Clerk | Michigan |
| 44 | Margaret Pruitt | 25 | Wife | — | Penna |
| 45 | Briggs | 27 | Brother | Architect | Michigan |
| 46 | Walter Hartsock | 33 | Head | Salesman | Penna |
| 47 | Edith Hartsock | 31 | Wife | — | Ohio |
| 48 | Robert Hartsock | 10 | Son | — | Ohio |
| 49 | Alice Hartsock | 60 | Mother | — | Penna |
| 50 | John Smith | 65 | Head | Saw Machinist | Scotland |
| 51 | Catherine Smith | 63 | Wife | — | Scotland |
| 52 | Anna Smith THIS PERSON | 38 | Daughter | Clerk | Scotland |
| 53 | Sally Sarah Smith | 27 | Daughter | Inspector | Penna |
| 54 | John Smith | 21 | Son | New Worker | Penna |
| 55 | Paul Bragg | 41 | Head | Engineer | Penna |
| 56 | Margaret A. Bragg | 43 | Wife | — | Penna |
| 57 | Robert Bragg | 13 | Son | — | Penna |
| 58 | Richard Bragg | 9 | Son | — | Penna |
| 59 | Ervin Specht | 35 | Head | Draftsman | Penna |
| 60 | Luella E. Specht | 32 | Wife | — | Penna |
| 61 | Dorothy Jean Specht | 11 | Daughter | — | Penna |
| 62 | Beverly Specht | 3 | Daughter | — | Penna |
| 63 | Robert Specht | 1 | Son | — | Penna |
| 64 | William E. Mcknight | 42 | Head | Salesman | Penna |
| 65 | Anna Mcknight | 43 | Wife | — | Penna |
| 66 | William Mcknight | 18 | Son | — | Penna |
| 67 | Marjorie Mcknight | 16 | Daughter | — | Penna |
| 68 | Teddy Mcknight | 12 | Son | — | Penna |
| 69 | Harvey Johnson | 45 | Head | Salesman | New York |
| 70 | Mary Johnson | 36 | Wife | — | England |
| 71 | Frances Johnson | 19 | Daughter | — | Penna |
| 72 | Andrew Thompson | 50 | Head | Foreman | Penna |
| 73 | Edna Thompson | 43 | Wife | — | Penna |
| 74 | Calvin Thompson | 23 | Son | Laborer | Penna |
| 75 | Edna Jean Thompson | 22 | Daughter | Dressmaker | Penna |
| 76 | Ralph Thompson | 13 | Son | — | Penna |
| 77 | Ronald Thompson | 7 | Son | — | Penna |
| 78 | Joseph Anthony | 42 | Head | Salesman | Ohio |
| 79 | Mary Anthony | 39 | Wife | — | Penna |
| 80 | Marjorie Anthony | 20 | Daughter | New Worker | Penna |
Pedigree Summary
Anna + 2 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 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)