RH
Robert Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Robert Harper across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1913), then head of a 5-person household.
Age 27
b. ~1913
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Harper |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Some House |
| 1935 Residence (County) | Some House |
| Additional Details | |
| Occupation | Clerk |
| Industry | Dept Store Stockroom |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Pittsburgh |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Frederick Apperman | Other | — | 60 | ~1880 |
| Robert Harper | Son | — | 27 | ~1913 |
| James Clark | Other | — | 56 | ~1884 |
| Nancy Harper | Head | — | 51 | ~1889 |
| Margaret Aiken | Other | — | 86 | ~1854 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 5
Allegheny, Pennsylvania · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 16
Allegheny, Pennsylvania · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| 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 — 5 household members
| Surname | Harper |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Some House |
| 1935 Residence (County) | Some House |
| Occupation | Clerk |
| Industry | Dept Store Stockroom |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 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 Harper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Harper (~0.92 confidence) and father William Harper (~0.92 confidence) and mother Lillian Harper (~0.92 confidence) and mother Nancy Harper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Harper
b. ~1883
Source father
● Household
· direct · ~0.92
Father
William Harper
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Lillian Harper
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Nancy Harper
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Harper
Son · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03674-00070)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Barbara Kaufmann | 9 | Daughter | — | Pennsylvania |
| 42 | David Kaufmann | 6 | Son | — | Pennsylvania |
| 43 | Harry Berger | 49 | Head | Dealer | Pennsylvania |
| 44 | Christina Berger | 41 | Wife | — | Pennsylvania |
| 45 | Phillip Berger | 25 | Son | Laborer | Pennsylvania |
| 46 | Henry A. Bichert | 61 | Head | Salesman | Pennsylvania |
| 47 | Katharine Bichert | 32 | Daughter | Stenographer | Pennsylvania |
| 48 | Janet Bichert | 27 | Daughter | — | Pennsylvania |
| 49 | Richard Bichert | 4 | Son | — | Pennsylvania |
| 50 | Albert Thurell | 45 | Head | Clerk | New York |
| 51 | Edna Thurell | 45 | Wife | — | Pennsylvania |
| 52 | Albert Thurell | 14 | Son | — | Pennsylvania |
| 53 | Edna Brunko | 66 | Mother | — | Pennsylvania |
| 55 | Edward Snyder | 33 | Head | Chauffeur | Pennsylvania |
| 56 | Grace Snyder | 31 | Wife | — | Pennsylvania |
| 57 | Jean Snyder | 11 | Daughter | — | Pennsylvania |
| 58 | Dorothy Snyder | 8 | Daughter | — | Pennsylvania |
| 59 | Judith Snyder | 2 | Daughter | — | Pennsylvania |
| 60 | Charles Leslie | 29 | Head | Laborer | Pennsylvania |
| 61 | Bernice Leslie | 25 | Wife | — | Pennsylvania |
| 62 | Janice Leslie | 5 | Daughter | — | Pennsylvania |
| 63 | George Henninger | 74 | Head | — | Germany |
| 64 | Dora Henninger | 74 | Wife | — | Germany |
| 65 | Sadie M. Henninger | 51 | Daughter | — | Pennsylvania |
| 66 | Nancy N. Harper | 51 | Head | — | Pennsylvania |
| 67 | Robert J. Harper THIS PERSON | 27 | Son | Clerk | Pennsylvania |
| 68 | James Clark | 56 | Friend | Laborer | Pennsylvania |
| 69 | Frederick Apperman | 60 | Lodger | Salesman | Pennsylvania |
| 70 | Margaret Aiken | 86 | Mother | — | Pennsylvania |
| 71 | Joseph Paul | 43 | Head | Shipper | Pennsylvania |
| 72 | Magdalen Paul | 36 | Wife | — | Pennsylvania |
| 73 | Richard Paul | 10 | Son | — | Pennsylvania |
| 74 | Ronald Paul | 7 | Son | — | Pennsylvania |
| 75 | Hugh Hunter | 50 | Head | Fireman | Ireland |
| 76 | Anna Hunter | 35 | Wife | — | Pennsylvania |
| 77 | Gene Lackner | 14 | Daughter | — | Pennsylvania |
| 78 | Herbert Beckert | 44 | Head | Driver | Pennsylvania |
| 79 | Amy Beckert | 39 | Wife | — | Pennsylvania |
| 80 | Gladys Beckert | 19 | Daughter | Stenographer | Pennsylvania |
Pedigree Summary
Robert
Gen 1 · 4 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)