RH
Robert Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tippecanoe-County, Indiana
Our Model Tree links this Robert Harper across the 1920, 1930 and 1940 US Censuses in Tippecanoe-County, Indiana (XGBoost, ~Confirmed), with identified parents Claud & Claude — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tippecanoe-County, Indiana |
| Surname | Harper |
| Given Name | Robert V |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | West Lafayette |
| 1935 Residence (County) | Tippecanoe |
| Additional Details | |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | West Lafayette |
| Est. Birth Year | ~1918 |
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 | — | 22 | ~1918 |
| Willis Harper | Son | — | 16 | ~1924 |
| Mary Harper | Spouse | — | 49 | ~1891 |
| Claud Harper | Head | — | 45 | ~1895 |
Census Appearances
1920
Tippecanoe, Indiana
Son, age 2
Tippecanoe, Indiana · implied b. ~1918 — 4 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 | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Tippecanoe, Indiana
Son, age 12
Tippecanoe, Indiana · implied b. ~1918 — 5 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 | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Tippecanoe-County, Indiana
Son, age 22
Tippecanoe-County, Indiana · implied b. ~1918 — 4 household members
| Surname | Harper |
| Given Name | Robert V |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | West Lafayette |
| 1935 Residence (County) | Tippecanoe |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Claud Harper (~0.92 confidence) and father Claude Harper (~0.92 confidence) and mother Mary Harper (~0.92 confidence) and mother Mary Harper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Claud Harper
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Claude Harper
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Mary Harper
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Mary Harper
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Harper
Son · 1940 · age 22 · b. ~1918 · Indiana
★ You are viewing this record
Sibling
Willis Harper
Sibling · 1940 · age 16
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 — Tippecanoe-County, Indiana
Open full size
1940 US Federal Census — Tippecanoe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01099-00469)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ira Cole | 49 | Head | Medical Doctor | Indiana |
| 42 | Mable S Cole | 48 | Wife | — | Indiana |
| 43 | Don Cole | 24 | Son | Presser | Indiana |
| 44 | Bill Cole | 18 | Son | — | Indiana |
| 45 | Hazel Cole | 21 | Neice | Bookkeeper | Indiana |
| 46 | Jean S Hittle | 23 | Head | Clerk | Indiana |
| 47 | Mary Hittle | 26 | Wife | — | Indiana |
| 48 | Geraldin Hittle | 0 | Daughter | — | Indiana |
| 49 | Charles M Rawles | 56 | Head | Mgr & Owner | Indiana |
| 50 | Gertrude Rawles | 48 | Wife | — | Indiana |
| 51 | Charles M Rawles | 19 | Son | — | Indiana |
| 52 | Mary E Hurley | 66 | Head | — | Indiana |
| 53 | George W Hurley | 64 | Brother | — | Indiana |
| 54 | Cornelius Hurley | 60 | Brother | Owner & Mgr | Indiana |
| 55 | Paul Hurley | 43 | Brother | Field Man | Indiana |
| 56 | Edward Gannon | 46 | Head | Prof Dairy | Massachusetts |
| 57 | Mae Gannon | 46 | Wife | — | Iowa |
| 58 | Kathleen Gannon | 17 | Daughter | — | Indiana |
| 59 | Rose Gannon | 13 | Daughter | — | Indiana |
| 60 | William Miller | 51 | Head | Prof Of Horticulture | Illinois |
| 61 | Leona R Miller | 53 | Wife | — | Indiana |
| 62 | William Jr Miller | 20 | Son | — | Indiana |
| 63 | James Miller | 12 | Son | — | Indiana |
| 64 | Claud Harper | 45 | Head | Animal Husbandry Asst Chief Of | Indiana |
| 65 | Mary F Harper | 49 | Wife | — | Indiana |
| 66 | Robert V Harper THIS PERSON | 22 | Son | — | Illinois |
| 67 | Willis James Harper | 16 | Son | — | Indiana |
| 68 | Richard Torrenga | 68 | Head | Owner & Mgr | Indiana |
| 69 | Kathryn Torrenga | 68 | Wife | — | Holland |
| 70 | Jeanette Torrenga | 39 | Daughter | — | Indiana |
| 71 | Albert Torrenga | 37 | Son | Mechanic | Indiana |
| 72 | Lloyd M Vallely | 39 | Head | Univ Bldg Manager | Indiana |
| 73 | Madeline Vallely | 33 | Wife | — | Indiana |
| 74 | Ross O Lakin | 41 | Head | Teacher | Indiana |
| 75 | Lottie Lakin | 38 | Wife | — | Indiana |
| 76 | Joanne Lakin | 5 | Daughter | — | Indiana |
| 77 | Geo H Burkle | 46 | Head | Owner Salesman | Indiana |
| 78 | Mary O Burkle | 40 | Wife | — | Indiana |
| 79 | Jennie Sullivan | 66 | Mother in law | Bookkeeper | Indiana |
| 80 | Ralph Himes | 47 | Head | Owner & Manager | Indiana |
Pedigree Summary
Robert + 1 sibling
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)