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John Allison — 1940 US Census Record
Model Tree available1940 United States Federal Census · Carbon-County, Utah
Our Model Tree links this John Allison across the 1920, 1930 and 1940 US Censuses in Carbon-County, Utah (XGBoost, ~Confirmed), with identified parents Charles & Robert — first a son (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Male
Son
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Carbon-County, Utah |
| Surname | Allison |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Helper City |
| Additional Details | |
| Occupation | Boiler Washer |
| Industry | Utah Railway |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | Hs 2 |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Boiler Washer |
| Township / Ward | Helper City |
| Est. Birth Year | ~1906 |
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 |
|---|---|---|---|---|
| Charles Knotts | Head | — | 54 | ~1886 |
| John Allison | Son | — | 34 | ~1906 |
| Mary Knotts | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Carbon, Utah
Son, age 14
Carbon, Utah · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allison |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Carbon, Utah
Son, age 24
Carbon, Utah · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allison |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Colorado |
| Occupation | Machinist Helper |
| Industry | Steam Railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Carbon-County, Utah
Son, age 34
Carbon-County, Utah · implied b. ~1906 — 3 household members
| Surname | Allison |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Helper City |
| Occupation | Boiler Washer |
| Industry | Utah Railway |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | Hs 2 |
| 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 Allison across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Knotts (~0.92 confidence) and father Robert Allison (~0.92 confidence) and mother Mary Allison (~0.92 confidence) and mother Mary Knotts (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Knotts
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Robert Allison
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mary Allison
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Mary Knotts
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Allison
Son · 1940 · age 34 · b. ~1906 · Utah
★ 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 — Carbon-County, Utah
Open full size
1940 US Federal Census — Carbon-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04211-00078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert O. Swenson | 21 | Head | Paper Cutter | Utah |
| 42 | Elsie Swenson | 20 | Wife | — | Utah |
| 43 | Don J. Rolando | 40 | Head | Mine Mechanic | Utah |
| 44 | Adeline Rolando | 35 | Wife | — | Wyoming |
| 45 | Edward C. Kimball | 25 | Head | Locomotive Fireman | Colorado |
| 46 | Helen Mae Kimball | 21 | Wife | — | Utah |
| 47 | Fred Edward Kimball | 1 | Son | — | Utah |
| 48 | Neldon J. Trauntvein | 28 | Brother-in-law | Laborer | Utah |
| 49 | Betty Edna Trauntvein | 19 | Sister-in-law | — | Utah |
| 50 | Jordan K. Quenberry | 28 | Head | Mine Electrician | Utah |
| 51 | Ruth V. Quenberry | 27 | Wife | — | Virginia |
| 52 | Adam Ostrich | 50 | Head | Carpenter | Jugoslavia |
| 53 | Milka Ostrich | 46 | Wife | — | Jugoslavia |
| 54 | Thomas Plecas | 73 | Lodger | — | Croatia |
| 55 | Ernest C. Burgar | 73 | Head | Engine Watchman | Michigan |
| 56 | Ella C. Burgar | 69 | Wife | — | Iowa |
| 57 | G. S. Allison | 60 | Head | Locomotive Machinist | Scotland |
| 58 | Gladys Allison | 46 | Wife | — | Alberta |
| 59 | Clifford W. Dye | 41 | Head | Foreman | Utah |
| 60 | Alice Pearl Dye | 38 | Wife | — | Utah |
| 61 | John C. Dye | 16 | Son | Paper Carrier | Utah |
| 62 | Morris K. Dye | 12 | Son | — | Utah |
| 63 | Beverly Dye | 8 | Daughter | — | Utah |
| 64 | Joan Dye | 4 | Daughter | — | Utah |
| 65 | Betty Lendon | 19 | Daughter | — | Utah |
| 66 | Elmer Lendon | 21 | Son-in-law | Laborer | Indiana |
| 67 | Bazil S. Woods | 39 | Head | Face Boss | Tennessee |
| 68 | Verda Woods | 31 | Wife | — | Utah |
| 69 | Frances Woods | 11 | Daughter | — | Utah |
| 70 | Rae Woods | 11 | Daughter | — | Utah |
| 71 | Jack Kersbergen | 45 | Head | Machinist | Iowa |
| 72 | Minerva Kersbergen | 30 | Wife | — | Utah |
| 73 | Jimmie Kersbergen | 19 | Son | — | Utah |
| 74 | Ellis A. Crissman | 52 | Head | Assistant Manager | Ohio |
| 75 | Evelyn Crissman | 41 | Wife | — | Colorado |
| 76 | Bill J. Crissman | 17 | Son | — | Colorado |
| 77 | Betty Ruth Crissman | 14 | Daughter | — | Colorado |
| 78 | Charles A. Knotts | 54 | Head | Chief Police | Nebraska |
| 79 | Mary Knotts | 54 | Wife | — | Colorado |
| 80 | John E. Allison THIS PERSON | 34 | Son | Boiler Washer | Colorado |
Pedigree Summary
John
Gen 1 · 4 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)