JC
John Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Gunnison-County, Colorado
Our Model Tree links this John Campbell across the 1920, 1930 and 1940 US Censuses in Gunnison-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Gunnison-County, Colorado |
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Crested Butte |
| 1935 Residence (County) | Gunnison |
| Additional Details | |
| Occupation | Clerk |
| Industry | Hardware Co |
| Class of Worker | OA |
| Hours Worked | 56 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Clerk |
| Township / Ward | Crested Butte |
| Est. Birth Year | ~1894 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Campbell | Head | — | 46 | ~1894 |
| Roger Campbell | Son | — | 10 | ~1930 |
| Alex Campbell | Son | — | 18 | ~1922 |
| John Campbell | Son | — | 19 | ~1921 |
| Marie Campbell | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Gunnison, Colorado
Head, age 26
Gunnison, Colorado · implied b. ~1894 — 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 | 26 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Driver |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Gunnison, Colorado
Head, age 36
Gunnison, Colorado · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 26 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Retail Merchant |
| Industry | Hardware & Furniture |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 18 |
| Veteran | Yes WW |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Gunnison-County, Colorado
Head, age 46
Gunnison-County, Colorado · implied b. ~1894 — 5 household members
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Crested Butte |
| 1935 Residence (County) | Gunnison |
| Occupation | Clerk |
| Industry | Hardware Co |
| Class of Worker | OA |
| Hours Worked | 56 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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.
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This person
Anchor record
John Campbell
Head · 1940 · age 46 · b. ~1894 · Colorado
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Gunnison-County, Colorado
Open full size
1940 US Federal Census — Gunnison-County, Colorado
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00464-00284)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Jr. Gibson | 6 | son | — | Colorado |
| 42 | James Gibson | 4 | son | — | Colorado |
| 43 | Marilyn Gibson | 3 | daughter | — | Colorado |
| 44 | Minnie L. Gibson | 39 | sister | Telephone Operator | Maryland |
| 45 | John Campbell THIS PERSON | 46 | head | Clerk | Colorado |
| 46 | Marie A. Campbell | 45 | wife | — | Colorado |
| 47 | John Jr. Campbell | 19 | son | Mechanic | Colorado |
| 48 | Alex Campbell | 18 | son | — | Colorado |
| 49 | Roger Campbell | 10 | son | — | Colorado |
| 50 | Lester Bratton | 36 | head | Miner | Kansas |
| 51 | Geneva Bratton | 35 | wife | — | Texas |
| 52 | Rudy Venzuel | 30 | head | Postmaster | Colorado |
| 53 | Esther Venzuel | 25 | wife | — | Washington |
| 54 | James Martin Venzuel | 4 | son | — | Colorado |
| 55 | Nancy Lou Venzuel | 0 | daughter | — | Colorado |
| 56 | Joseph Felthager | 34 | head | Ass. Foreman | Kansas |
| 57 | Marie Felthager | 30 | wife | — | Colorado |
| 58 | Joseph Felthager | 15 | son | — | Colorado |
| 59 | Melvin Felthager | 11 | son | — | Colorado |
| 60 | Jack L. Felthager | 10 | son | — | Colorado |
| 61 | Lorraine Felthager | 8 | daughter | — | Colorado |
| 62 | Edwin James Felthager | 6 | son | — | Colorado |
| 63 | Nancy M. Felthager | 4 | daughter | — | Colorado |
| 64 | Ann Beranak | 21 | head | Waitress | Colorado |
| 65 | Louise Beranak | 19 | sister-in-law | Clerk | Colorado |
| 66 | William J. Gilbert | 37 | head | Store Manager | Colorado |
| 67 | Dorothy Rose Gilbert | 34 | wife | — | Pennsylvania |
| 68 | Janice Ellen Gilbert | 5 | daughter | — | Colorado |
| 69 | William Nancy Gilbert | 3 | son | — | Colorado |
| 70 | Henry Steinberg | 54 | head | Electric Engineer | Arkansas |
| 71 | Everett Steinberg | 30 | son | — | Missouri |
| 72 | Louis Malaczek | 37 | head | Miner | Colorado |
| 73 | Pauline Malaczek | 39 | wife | — | Yugo-Slavia |
| 74 | Agnes Malaczek | 10 | daughter | — | Colorado |
| 75 | Louis Malaczek | 8 | son | — | Colorado |
| 76 | Rudy Malaczek | 5 | son | — | Colorado |
| 77 | Mary Ann Malaczek | 3 | daughter | — | Colorado |
| 78 | Betty Jean Malaczek | 1 | daughter | — | Colorado |
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)