JG
John Gibbs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cassia-County, Idaho
Our Model Tree links this John Gibbs across the 1930 and 1940 US Censuses in Cassia-County, Idaho (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cassia-County, Idaho |
| Surname | Gibbs |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Unity Precinct |
| 1935 Residence (County) | Cassia |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Township / Ward | Unity Precinct |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Betty Gibbs | Daughter | — | 19 | ~1921 |
| Willard Gibbs | Son | — | 18 | ~1922 |
| Barbara Gibbs | Daughter | — | 16 | ~1924 |
| Willard Gibbs | Head | — | 40 | ~1900 |
| John Gibbs | Son | — | 12 | ~1928 |
| Ann Gibbs | Spouse | — | 39 | ~1901 |
| Donna Gibbs | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Cassia, Idaho
Son, age 2
Cassia, Idaho · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gibbs |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Idaho |
| Mother's Birthplace | Idaho |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Cassia-County, Idaho
Son, age 12
Cassia-County, Idaho · implied b. ~1928 — 7 household members
| Surname | Gibbs |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Unity Precinct |
| 1935 Residence (County) | Cassia |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 Gibbs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Gibbs
Son · 1940 · age 12 · b. ~1928 · Idaho
★ You are viewing this record
Sibling
Donna Gibbs
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willard Gibbs
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Gibbs
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Gibbs
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 — Cassia-County, Idaho
Open full size
1940 US Federal Census — Cassia-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00744-00550)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Agnes Lewis | 42 | Head | — | W. Virginia |
| 2 | Blanche Lewis | 20 | Daughter | Housekeeper | Utah |
| 3 | Richard Lewis | 19 | Son | Laborer | Idaho |
| 4 | Dewey Lewis | 17 | Son | Farm Hand | Idaho |
| 5 | Duane Lewis | 14 | Son | — | Idaho |
| 6 | Robert Lewis | 13 | Son | — | Idaho |
| 7 | Ruby Lewis | 11 | Daughter | — | Idaho |
| 8 | Hazel Lewis | 7 | Daughter | — | Idaho |
| 9 | Bud Lewis | 4 | Son | — | Idaho |
| 10 | Larry Dean Lewis | 2 | Son | — | Idaho |
| 11 | Elmer Lewis | 24 | Head | Farm Hand | Idaho |
| 12 | Dora Lewis | 17 | Wife | — | Idaho |
| 13 | Jerry Lewis | 0 | Son | — | Idaho |
| 14 | Jesse W. Matthews | 48 | Head | Farm Operator | Utah |
| 15 | Vina Matthews | 48 | Wife | — | Utah |
| 16 | Earl Matthews | 24 | Son | Farm Hand | Utah |
| 17 | Clair Matthews | 21 | Son | Farm Hand | Idaho |
| 18 | Bessie Matthews | 19 | Daughter | — | Idaho |
| 19 | Rachel Matthews | 15 | Daughter | — | Idaho |
| 20 | Nyla Matthews | 11 | Daughter | — | Idaho |
| 21 | Gene Matthews | 7 | Son | — | Idaho |
| 22 | Dellon Mallory | 49 | Head | Farm Operator | Utah |
| 23 | Emma D. Mallory | 39 | Wife | — | Utah |
| 24 | Max Mallory | 17 | Son | — | Idaho |
| 25 | Elaine Mallory | 15 | Daughter | — | Idaho |
| 26 | Gerald Mallory | 13 | Son | — | Idaho |
| 27 | Nyle Mallory | 12 | Son | — | Idaho |
| 28 | Lola Mallory | 10 | Daughter | — | Idaho |
| 29 | Donald Mallory | 8 | Son | — | Idaho |
| 30 | Hazel Mallory | 7 | Daughter | — | Idaho |
| 31 | Ruth Mallory | 5 | Daughter | — | Idaho |
| 32 | Larry Mallory | 3 | Son | — | Idaho |
| 33 | Willard Mallory | 1 | Son | — | Idaho |
| 34 | Willard L. Gibbs | 40 | Head | Farm Operator | Idaho |
| 35 | Ann Gibbs | 39 | Wife | — | Idaho |
| 36 | Betty Gibbs | 19 | Daughter | Farm Hand | Idaho |
| 37 | Willard Gibbs | 18 | Son | — | Idaho |
| 38 | Barbara Gibbs | 16 | Daughter | — | Idaho |
| 39 | Donna Gibbs | 14 | Daughter | — | Idaho |
| 40 | John Gibbs THIS PERSON | 12 | Son | — | Idaho |
Related Census Records
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)