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Robert Harmon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Robert Harmon across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 6-person household.
Age 27
b. ~1913
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Dormont |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Salesman |
| Industry | Spray Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Salesman |
| Township / Ward | Dormont |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Harmon | Son | — | 27 | ~1913 |
| James Harmon | Son | — | 17 | ~1923 |
| Harold Harmon | Head | — | 50 | ~1890 |
| Russell Harmon | Son | — | 19 | ~1921 |
| Bernice Harmon | Spouse | — | 49 | ~1891 |
| Raymond Harmon | Son | — | 22 | ~1918 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 16
Allegheny, Pennsylvania · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | Nebraska |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 27
Allegheny-County, Pennsylvania · implied b. ~1913 — 6 household members
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Dormont |
| 1935 Residence (County) | Allegheny |
| Occupation | Salesman |
| Industry | Spray Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| 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 Robert Harmon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Harmon
Son · 1940 · age 27 · b. ~1913 · Pennsylvania
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Sibling
James Harmon
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Harmon
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Harmon
Sibling · 1940 · age 19
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-t0627-03401-00724)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter Schoneweis | 21 | Son | — | Pennsylvania |
| 42 | Clara E. Williams | 61 | Sister | — | Pennsylvania |
| 43 | Barbara Undrill | 67 | Head | — | Germany |
| 44 | Jacob Undrill | 43 | Son | Clerk | Pennsylvania |
| 45 | Marie Undrill | 37 | Daughter | Stenographer | Pennsylvania |
| 46 | Louise Undrill | 29 | Daughter | Bookkeeper | Pennsylvania |
| 47 | Marcella Undrill | 25 | Daughter | Clerk | Pennsylvania |
| 48 | Amelia Selder | 32 | Servant | Servant | Pennsylvania |
| 49 | Harold Harmon | 50 | Head | Salesman | Pennsylvania |
| 50 | Bernice Harmon | 49 | Wife | — | Pennsylvania |
| 51 | Robert Harmon THIS PERSON | 27 | Son | Salesman | Pennsylvania |
| 52 | Raymond Harmon | 22 | Son | Clerk | Pennsylvania |
| 53 | Russell Harmon | 19 | Son | — | Pennsylvania |
| 54 | James Harmon | 17 | Son | — | Pennsylvania |
| 55 | William B. Hamble | 29 | Head | Public Accountant | Pennsylvania |
| 56 | Kathryn Hamble | 26 | Wife | — | Pennsylvania |
| 57 | William H. Reed | 35 | Head | Clerk | New Jersey |
| 58 | Pauline Reed | 27 | Wife | — | Pennsylvania |
| 59 | William Reed | 2 | Son | — | Pennsylvania |
| 60 | William Ferguson | 41 | Head | Salesman | Scotland |
| 61 | Gertrude Ferguson | 41 | Wife | Clerk | Pennsylvania |
| 62 | Caroline Ferguson | 71 | Mother | — | New York |
| 63 | John O'Donnell | 38 | Head | Physician | Pennsylvania |
| 64 | Catherine O'Donnell | 35 | Wife | — | Pennsylvania |
| 65 | J. Barry O'Donnell | 8 | Son | — | Pennsylvania |
| 66 | Sara Joyce | 65 | Mother-in-law | — | Irish Free State |
| 67 | Father-In-Law John | None | M | Pipe Mill | — |
| 68 | John Broderick | 79 | Head | — | Irish Free State |
| 69 | Mary Jane Broderick | 70 | Wife | — | Pennsylvania |
| 70 | John Broderick | 47 | Son | Pressman | Pennsylvania |
| 71 | Robert Broderick | 29 | Son | Clerk | Pennsylvania |
| 72 | Catherine Broderick | 38 | Daughter | Clerk | Pennsylvania |
| 73 | Margaret Broderick | 30 | Daughter | Clerk | Pennsylvania |
| 74 | Austin A. Wales | 42 | Head | Salesman | Vermont |
| 75 | Margaret Wales | 41 | Wife | — | Pennsylvania |
| 76 | Francis H. Spry | 42 | Head | Manager | Ohio |
| 77 | Grace Bell Spry | 45 | Wife | — | Ohio |
| 78 | Patricia Jean Spry | 16 | Daughter | — | Ohio |
| 79 | Belber S. Elliott | 61 | Head | Minister | Iowa |
| 80 | Emma C. Elliott | 60 | Wife | — | Iowa |
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)