RC
Robert Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Richland-County, Ohio
Our Model Tree links this Robert Campbell across the 1920, 1930 and 1940 US Censuses in Richland-County, Ohio (XGBoost, ~Confirmed), with identified parents Robt & Elizabeth — first a head (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Richland-County, Ohio |
| Surname | Campbell |
| Given Name | Robert J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Mansfield |
| 1935 Residence (County) | Richland |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Draftsman |
| Industry | Elec. Mfg. Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1623 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Draftsman |
| Township / Ward | Mansfield |
| Est. Birth Year | ~1903 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Campbell | Head | — | 37 | ~1903 |
| Robert Campbell | Son | — | 9 | ~1931 |
| Henrietta Campbell | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Richland, Ohio
Son, age 16
Richland, Ohio · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Scotland |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Richland, Ohio
Head, age 27
Richland, Ohio · implied b. ~1903 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 26 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Draftsman |
| Industry | Electric Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 33.00 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Richland-County, Ohio
Head, age 37
Richland-County, Ohio · implied b. ~1903 — 3 household members
| Surname | Campbell |
| Given Name | Robert J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Mansfield |
| 1935 Residence (County) | Richland |
| Naturalization Status | Naturalized |
| Occupation | Draftsman |
| Industry | Elec. Mfg. Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1623 |
| Highest Grade | Hs 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 Robert Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robt Campbell (~0.92 confidence) and mother Elizabeth Campbell (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robt Campbell
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Campbell
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Campbell
Head · 1940 · age 37 · b. ~1903 · Ohio
★ 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 — Richland-County, Ohio
Open full size
1940 US Federal Census — Richland-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03135-00193)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | C. L. Dury | 34 | Head | Advertising | West Virginia |
| 42 | Katherine M. Dury | 61 | Head | — | Michigan |
| 43 | R. A. Jacob | 29 | Head | Optometry | Ohio |
| 44 | Meril Jacob | 27 | Wife | Optometry | Ohio |
| 45 | George H. Calhoun | 57 | Head | Safety Eng. | Penna. |
| 46 | Cecelia R. Calhoun | 57 | Wife | — | Ohio |
| 47 | S. Hoffman Calhoun | 27 | Son | Plant Eng. | Ohio |
| 48 | Myrtle J. Cole | 51 | Head | Clerking | Ohio |
| 49 | Alice M. Cole | 31 | Daughter | Teacher | Ohio |
| 50 | Nicholas M. Luvey | 43 | Head | Bartender | Yugoslavia |
| 51 | Bertha E. Luvey | 38 | Wife | Waitress | Illinois |
| 52 | Robert L. Luvey | 17 | Son | — | Ohio |
| 53 | Edith E. Shaulene | 22 | Sister-in-law | Assembly | Michigan |
| 54 | Richard J. Shaulene | 10 | Nephew | — | Ohio |
| 55 | Donald Freehafer | 21 | Lodger | Guard | Ohio |
| 56 | Charles E. Tolerick | 67 | Head | Valve Work | Ohio |
| 57 | Mary F. Tolerick | 60 | Wife | — | Ohio |
| 58 | Frank E. Tolerick | 36 | Son | Valve Work | Ohio |
| 59 | Anna W. Mercer | 87 | Mother-in-law | — | Ohio |
| 60 | Lillian M. Scott | 50 | Head | — | Kansas |
| 61 | Dorothy L. Scott | 17 | Daughter | Stenographer | West Virginia |
| 62 | Jean B. Scott | 15 | Daughter | Stenographer | Ohio |
| 63 | Marjorie P. Scott | 12 | Daughter | — | Ohio |
| 64 | R. W. F. Bell | 31 | Head | Tire Builder | Ohio |
| 65 | Charlene E. Bell | 34 | Wife | — | Indiana |
| 66 | Robert J. Campbell THIS PERSON | 37 | Head | Draftsman | Scotland |
| 67 | Henrietta A. Campbell | 38 | Wife | — | Ohio |
| 68 | Robert A. Campbell | 9 | Son | — | Ohio |
| 69 | Ivan J. Biddle | 50 | Head | Salesman | Ohio |
| 70 | Lillian E. Biddle | 48 | Wife | — | Ohio |
| 71 | Charles Biddle | 21 | Son | Bookkeeping | Ohio |
| 72 | Susan B. Biddle | 9 | Daughter | — | Ohio |
| 73 | Nicholas D. Weaver | 49 | Head | Hotel | Ohio |
| 74 | Anita B. Weaver | 38 | Wife | — | Ohio |
| 75 | Nicholas D. Weaver | 15 | Son | — | Ohio |
| 76 | Cary E. Weaver | 7 | Daughter | — | Ohio |
| 77 | William H. Freeman | 72 | Father-in-law | — | Michigan |
| 78 | Grace Rapes | 46 | Nurse | Nursing | Georgia |
| 79 | Harold D. Moore | 30 | Head | Adjuster | Michigan |
| 80 | Thelma E. R. Moore | 31 | Wife | — | Michigan |
Pedigree Summary
Robert
Gen 1 · 2 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)