RC
Robert Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Franklin-County, Ohio
Our Model Tree links this Robert Campbell across the 1920, 1930 and 1940 US Censuses in Franklin-County, Ohio (XGBoost, ~Confirmed), with identified parents James & James — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Franklin-County, Ohio |
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Columbus |
| 1935 Residence (County) | Franklin |
| Additional Details | |
| Occupation | Machinist |
| Industry | Bolt Mfg. |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 1200 |
| Highest Grade | H-3 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Machinist |
| Township / Ward | Columbus |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| Shirley Campbell | Daughter | — | 3 | ~1937 |
| Margaret Campbell | Daughter | — | 5 | ~1935 |
| Robert Campbell | Head | — | 31 | ~1909 |
| Margaret Campbell | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Franklin, Ohio
Son, age 11
Franklin, Ohio · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Franklin, Ohio
Son, age 21
Franklin, Ohio · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | tile maker |
| Industry | tile works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Franklin-County, Ohio
Head, age 31
Franklin-County, Ohio · implied b. ~1909 — 4 household members
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Columbus |
| 1935 Residence (County) | Franklin |
| Occupation | Machinist |
| Industry | Bolt Mfg. |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 1200 |
| Highest Grade | H-3 |
| 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 Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Campbell (~0.92 confidence) and father James Campbell (~0.92 confidence) and mother Ora Campbell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Campbell
b. ~1867
Source father
● Household
· direct · ~0.92
Father
James Campbell
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Ora Campbell
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Campbell
Head · 1940 · age 31 · b. ~1909 · 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 — Franklin-County, Ohio
Open full size
1940 US Federal Census — Franklin-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03250-00325)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Campbell THIS PERSON | 31 | Head | Machinist | Ohio |
| 2 | Margaret Campbell | 28 | Wife | — | Ohio |
| 3 | Margaret Campbell | 5 | Daughter | — | Ohio |
| 4 | Shirley Campbell | 3 | Daughter | — | Ohio |
| 5 | Alfred Stearns | 50 | Head | Salesman | New York N.Y. |
| 6 | Mercedes Stearns | 50 | Wife | — | Argentina, S.A. |
| 7 | Edwin A. Stearns | 22 | Son | — | Ohio |
| 8 | Mattie Beecher | 50 | Head | Machine Oper. | Ohio |
| 9 | Martha Beecher | 29 | Wife | — | Ohio |
| 10 | Ronald Beecher | 1 | Son | — | Ohio |
| 11 | Gerald E. Henry | 30 | Head | Salesman | Ohio |
| 12 | Josephine I. Henry | 30 | Wife | Stenographer | Ohio |
| 13 | Lona Watts | 46 | Head | Label Maker | Illinois |
| 14 | Robert Watts | 20 | Son | Planning Engineer | Ohio |
| 15 | Hattie Hoover | 51 | Head | Clerk | Ohio |
| 16 | Helen Hoover | 25 | Niece | Floor-Lady | Ohio |
| 17 | David Finnigan | 34 | Head | Cleaner & Presser | Ohio |
| 18 | Gladys Finnigan | 27 | Wife | — | Ohio |
| 19 | Pauline C. Wilson | 51 | Head | — | Ohio |
| 20 | Roger B. Wilson | 27 | Son | Stenographer | Ohio |
| 21 | Joanna Wilson | 14 | Daughter | — | Ohio |
| 22 | Lawrence W. Cheeseman | 33 | Head | Mfg. Heating Unit | Ohio |
| 23 | Julia Cheeseman | 23 | Wife | — | New York |
| 24 | Judith Cheeseman | 2 | Daughter | — | Ohio |
| 25 | Thomas H. Whipps | 63 | Lodger | — | Ohio |
| 26 | Francois Letourneau | 52 | Head | Owner | Canada-Eng |
| 27 | Dr. Philip P. Barbour | 52 | Lodger | — | — |
| 28 | Florence M. Ireland | 47 | Head | Manager | Ohio |
| 29 | Walter Ireland | 19 | Son | — | Ohio |
| 30 | Clara Italo | 75 | Mother | — | Ohio |
| 31 | Thomas J. Curtis | 47 | Bro. in law | Cutter, Canvas Goods | Ohio |
| 32 | Lena G. Curtis | 43 | Sister | Typist | Ohio |
| 33 | Carrie R. Daughty | 61 | Head | Housework | Ohio |
| 34 | Dwight G. Matthews | 54 | Head | Drapery Buyer | Ohio |
| 35 | Ethel Matthews | 50 | Wife | — | Ohio |
| 36 | Madge Matthews | 20 | Daughter | — | Ohio |
| 37 | Daughter Matthews | 13 | Daughter | — | Ohio |
| 38 | Robert Metcalf Mackey | 34 | Lodger | Bookkeeper | China |
| 39 | Jessie B. Neal | 64 | Head | House Work | Ohio |
| 40 | Dorothy E. Neal | 36 | Daughter | Gen'L Office Work | Ohio |
Pedigree Summary
Robert
Gen 1 · 3 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)