HS
Henry Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Henry Smith across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Isabella — first a son (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Male
Son
Born: Scotland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Smith |
| Given Name | Henry K. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Dormont |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | sales representative |
| Industry | Advertising |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 450 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Sales Representative |
| Township / Ward | Dormont |
| Est. Birth Year | ~1893 |
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 Henry | Age | Birth yr |
|---|---|---|---|---|
| Mary Smith | Daughter | — | 38 | ~1902 |
| Isabella Smith | Head | — | 77 | ~1863 |
| William Smith | Son | — | 51 | ~1889 |
| Henry Smith | Son | — | 47 | ~1893 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 28
Allegheny, Pennsylvania · implied b. ~1892 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Harry |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1906 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Insane |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Eng |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Allegheny, Pennsylvania
Other, age 37
Allegheny, Pennsylvania · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Henry R. |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1906 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Clerk |
| Industry | Refining Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Allegheny-County, Pennsylvania
Son, age 47
Allegheny-County, Pennsylvania · implied b. ~1893 — 4 household members
| Surname | Smith |
| Given Name | Henry K. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Dormont |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Occupation | sales representative |
| Industry | Advertising |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 450 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Henry Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Isabella Smith (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Isabella Smith
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Henry Smith
Son · 1940 · age 47 · b. ~1893 · Pennsylvania
★ You are viewing this record
Sibling
William Smith
Sibling · 1940 · age 51
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Smith
Sibling · 1940 · age 38
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-t0627-03401-00836)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mccormick | None | — | — | — |
| 42 | Mccormick | None | — | — | — |
| 43 | Mccormick | None | — | — | — |
| 44 | Harold J. Grace | 51 | Head | Salesman | Pennsylvania |
| 45 | Irene D. Grace | 49 | Wife | — | England |
| 46 | Harold S. Grace | 24 | Son | Clerk | Pennsylvania |
| 47 | Dorothy F. Grace | 22 | Daughter | Office | Pennsylvania |
| 48 | Marjorie J. Grace | 20 | Daughter | Clerk | Pennsylvania |
| 49 | Ruth Audrey Grace | 16 | Daughter | — | Pennsylvania |
| 50 | Rose L. Dell | 49 | Head | — | Pennsylvania |
| 51 | James Lee Mccann | 44 | Head | Foreman In Steel Strip | West Virginia |
| 52 | Olive M. Mccann | 40 | Wife | — | Pennsylvania |
| 53 | James J. (Jr.) Mccann | 19 | Son | Cashier | Pennsylvania |
| 54 | Albert G. Dengler | 39 | Head | Route Salesman | Pennsylvania |
| 55 | Margaret Dengler | 39 | Wife | — | Pennsylvania |
| 56 | Jeanne Dengler | 17 | Daughter | — | Pennsylvania |
| 57 | David Dengler | 15 | Son | — | West Virginia |
| 58 | Joyce Dengler | 13 | Daughter | — | Pennsylvania |
| 59 | Jean Zinhardt | 55 | Mother | — | Pennsylvania |
| 60 | Elizabeth Haffner | 74 | Head | — | Pennsylvania |
| 61 | Phemie Mcdowell | 71 | Sister | — | Pennsylvania |
| 62 | Albert Shillen | 43 | Head | Auto Salesman | Pennsylvania |
| 63 | Agnes D. Shillen | 33 | Wife | — | Pennsylvania |
| 64 | Robert Shillen | 8 | Son | — | Pennsylvania |
| 65 | George Behr | 41 | Head | Musician | Pennsylvania |
| 66 | Marguerite Behr | 39 | Wife | — | Pennsylvania |
| 67 | Barbara Behr | 9 | Daughter | — | Pennsylvania |
| 68 | Clarence W. Rivere | 37 | Head | Photographer | New York |
| 69 | Helen Louise Rivere | 34 | Wife | — | Kentucky |
| 70 | Abigail D. Moore | 58 | Head | President | Pennsylvania |
| 71 | Kate Miller | 69 | Head | Office Manager | Pennsylvania |
| 72 | Margaret C. Gilliland | 62 | Housekeeper | Housekeeper | Southern |
| 73 | Isabella Smith | 77 | Head | — | Scotland |
| 74 | William Smith | 51 | Son | Bookkeeper | Scotland |
| 75 | Henry K. Smith THIS PERSON | 47 | Son | Sales Representative | Scotland |
| 76 | Mary K. Smith | 38 | Daughter | Bookkeeper | Scotland |
| 77 | Edward Nothrig | 50 | Head | Carpenter | Pennsylvania |
| 78 | Mary Nothrig | 50 | Wife | — | Pennsylvania |
| 79 | Edward Jr. Nothrig | 22 | Son | Salesboy | Pennsylvania |
| 80 | Billy Nothrig | 21 | Son | Manager | Pennsylvania |
Pedigree Summary
Henry + 2 siblings
Gen 1 · 1 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)