JC
John Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cleveland-County, Oklahoma
Our Model Tree links this John Campbell across the 1920, 1930 and 1940 US Censuses in Cleveland-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Matt & Alice — first a head (b.~1899), then head of a 3-person household.
Age 41
b. ~1899
Male
Head
Born: Texas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cleveland-County, Oklahoma |
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Norman |
| 1935 Residence (County) | Cleveland |
| Additional Details | |
| Occupation | Laborer |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 240 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Laborer |
| Township / Ward | Norman |
| Est. Birth Year | ~1899 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Maxine Campbell | Daughter | — | 9 | ~1931 |
| John Campbell | Head | — | 41 | ~1899 |
| Margaret Campbell | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Cleveland, Oklahoma
Son, age 20
Cleveland, Oklahoma · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Texas |
| Occupation | Waiter |
| Industry | Restaurant |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1930
Cleveland, Oklahoma
Head, age 30
Cleveland, Oklahoma · implied b. ~1900 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Texas |
| Age at First Marriage | 23 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Texas |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Cleveland-County, Oklahoma
Head, age 41
Cleveland-County, Oklahoma · implied b. ~1899 — 3 household members
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Norman |
| 1935 Residence (County) | Cleveland |
| Occupation | Laborer |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 240 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 John Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Matt Campbell (~0.92 confidence) and mother Alice Campbell (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Matt Campbell
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Alice Campbell
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Campbell
Head · 1940 · age 41 · b. ~1899 · Oklahoma
★ 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 — Cleveland-County, Oklahoma
Open full size
1940 US Federal Census — Cleveland-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03284-00455)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marie Middendorf | 65 | Head | — | Germany |
| 2 | Norma Middendorf | 29 | Daughter | Salesgirl | Oklahoma |
| 3 | Louis Fulling | 84 | Head | — | Ohio |
| 4 | Catherine Fulling | 82 | Wife | — | Pennsylvania |
| 5 | Maud Sawyer | 37 | Head | Beauty Operator | Oklahoma |
| 6 | Thomas Sawyer | 22 | Son | Attendant | Indiana |
| 7 | Herschel Sawyer | 17 | Son | Attendant | Oklahoma |
| 8 | Aline Northcutt | 21 | Lodger | Stenographer | Oklahoma |
| 9 | James Mcclanshan | 67 | Head | — | Tennessee |
| 10 | Mattie Mcclanshan | 65 | Wife | — | Texas |
| 11 | Rebecca Vandaveer | 82 | Head | — | Illinois |
| 12 | Pearl Lewis | 45 | Head | — | Arkansas |
| 13 | Tommie Lewis | 12 | Daughter | — | Oklahoma |
| 14 | Hardy Lewis | 16 | Son | — | Oklahoma |
| 15 | Martha Lewis | 17 | Daughter | — | Texas |
| 16 | John Campbell THIS PERSON | 41 | Head | Laborer | Texas |
| 17 | Margaret Campbell | 37 | Wife | Housekeeper | Oklahoma |
| 18 | Maxine Campbell | 9 | Daughter | — | Oklahoma |
| 19 | Inez Vicleop | 24 | Head | Waitress | Oklahoma |
| 20 | Patsy Vicleop | 2 | Daughter | — | Oklahoma |
| 21 | Herman Amrein | 43 | Head | Truck Driver | Oklahoma |
| 22 | Gertrude Amrein | 42 | Wife | — | Oklahoma |
| 23 | Herman Amrein | 14 | Son | — | Oklahoma |
| 24 | Troy Amrein | 22 | Son | Printer | Oklahoma |
| 25 | Lois Amrein | 19 | Daughter-in-law | — | Oklahoma |
| 26 | Lula Wiggins | 45 | Head | Chiropractor | Texas |
| 27 | Herbert Puckett | 30 | Nephew | — | Oklahoma |
| 28 | Jack Collier | 36 | Head | Beauty Operator | Texas |
| 29 | Ruth Collier | 37 | Wife | Beauty Operator | Oklahoma |
| 30 | Blanche Murphy | 42 | Head | Beauty Operator | Kansas |
| 31 | Mary Murphy | 17 | Daughter | — | Oklahoma |
| 32 | Lurata Ainsworth | 34 | Head | Beauty Operator | Kansas |
| 33 | Fred Jack | 64 | Head | Collector | Texas |
| 34 | Frank Irby | 70 | Head | Photographer | Pennsylvania |
| 35 | Nettie Irby | 62 | Wife | Bookkeeper | Missouri |
| 36 | Juanita B. Perry | 46 | Head | Owner | Kansas |
| 37 | Jack A. Crooks | 25 | Son | Manager | Oklahoma |
| 38 | Orville K. Reynolds | 53 | Head | Proprietor | Missouri |
| 39 | Dorothy Reynolds | 41 | Wife | Partner | Missouri |
| 40 | William Middleton | 32 | Lodger | City Letter Carrier | Oklahoma |
Pedigree Summary
John
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)