RH
Robert Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Fayette-County, Ohio
Our Model Tree links this Robert Harper across the 1920, 1930 and 1940 US Censuses in Fayette-County, Ohio (XGBoost, ~Confirmed), with identified parents Omar & Omar — first a son (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fayette-County, Ohio |
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Paint Township |
| 1935 Residence (County) | Fayette |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Laborer |
| Township / Ward | Paint Township |
| Est. Birth Year | ~1920 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Harper | Son | — | 20 | ~1920 |
| Owen Harper | Son | — | 31 | ~1909 |
| Omar Harper | Head | — | 62 | ~1878 |
| Ruth Harper | Daughter | — | 19 | ~1921 |
Census Appearances
1920
Fayette, Ohio
Son, age 1
Fayette, Ohio · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Fayette, Ohio
Son, age 11
Fayette, Ohio · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Robert V. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Fayette-County, Ohio
Son, age 20
Fayette-County, Ohio · implied b. ~1920 — 4 household members
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Paint Township |
| 1935 Residence (County) | Fayette |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Omar Harper (~0.92 confidence) and father Omar Harper (~0.92 confidence) and father Pomer Harper (~0.92 confidence) and mother Bessie Harper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Omar Harper
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Omar Harper
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Pomer Harper
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Bessie Harper
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Harper
Son · 1940 · age 20 · b. ~1920 · Ohio
★ You are viewing this record
Sibling
Owen Harper
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Harper
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 — Fayette-County, Ohio
Open full size
1940 US Federal Census — Fayette-County, Ohio
Page Contents
10 people indexed on this census page (nara:1940:m-t0627-03067-00233)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Brown | 64 | Head | Salesman | Ohio |
| 42 | Minnie Brown | 61 | Wife | — | Ohio |
| 43 | Mary Ellen Blackburn | 29 | Daughter | Teacher | Ohio |
| 44 | Charley Jones | 74 | Head | — | Ohio |
| 45 | Jim Smith | 67 | Companion | — | Ohio |
| 46 | Alice Smith | 65 | Housekeeper | Housekeeper | Ohio |
| 47 | Omar Harper | 62 | Head | Operator | Ohio |
| 48 | Owen Harper | 31 | Son | Laborer | Ohio |
| 49 | Robert Harper THIS PERSON | 20 | Son | Laborer | Ohio |
| 50 | Ruth Harper | 19 | Daughter | — | Kentucky |
Pedigree Summary
Robert + 2 siblings
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)