JZ
John Zimmerman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Duchesne-County, Utah
Our Model Tree links this John Zimmerman across the 1920, 1930 and 1940 US Censuses in Duchesne-County, Utah (XGBoost, ~Confirmed), with identified parents Charles & Sarah — first a head (b.~1897), then head of a 5-person household.
Age 43
b. ~1897
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Duchesne-County, Utah |
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Roosevelt |
| 1935 Residence (County) | Duchesne |
| Additional Details | |
| Occupation | Well driller |
| Industry | Own |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Well Driller |
| Township / Ward | Roosevelt |
| Est. Birth Year | ~1897 |
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 |
|---|---|---|---|---|
| Ila Zimmerman | Daughter | — | 9 | ~1931 |
| John Zimmerman | Head | — | 43 | ~1897 |
| John Zimmerman | Son | — | 5 | ~1935 |
| Mae Zimmerman | Son | — | 12 | ~1928 |
| Gladys Zimmerman | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Duchesne, Utah
Son, age 22
Duchesne, Utah · implied b. ~1898 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Colorado |
| Occupation | Laborer |
| Industry | Sugar Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Duchesne, Utah
Head, age 33
Duchesne, Utah · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 26 |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Colorado |
| Occupation | Laborer |
| Industry | Odd jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Duchesne-County, Utah
Head, age 43
Duchesne-County, Utah · implied b. ~1897 — 5 household members
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Roosevelt |
| 1935 Residence (County) | Duchesne |
| Occupation | Well driller |
| Industry | Own |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Zimmerman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Zimmerman (~0.92 confidence) and mother Sarah Zimmerman (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Zimmerman
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Sarah Zimmerman
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Zimmerman
Head · 1940 · age 43 · b. ~1897 · 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 — Duchesne-County, Utah
Open full size
1940 US Federal Census — Duchesne-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04212-00543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elwin Porritt | 10 | Son | — | Utah |
| 42 | Dixie Lee Oberg | 1 | Granddaughter | — | Utah |
| 43 | John M. Lundberg | 53 | Head | Rural Mail Carrier | Utah |
| 44 | Vivian Lundberg | 51 | Wife | Office Girl | Utah |
| 45 | Venice Lundberg | 20 | Daughter | Office Girl | Utah |
| 46 | Loren Lundberg | 17 | Son | Bottler | Utah |
| 47 | James A. Lundberg | 9 | Son | — | Utah |
| 48 | Agnes Hert | 75 | Head | — | Scotland |
| 49 | Bevin Wardle | 39 | Head | Salesman | Utah |
| 50 | Bessie Wardle | 40 | Wife | — | Wyoming |
| 51 | Jean Wardle | 19 | Daughter | — | Utah |
| 52 | Dorothy Wardle | 9 | Daughter | — | Utah |
| 53 | Keith Wardle | 3 | Son | — | Utah |
| 54 | Samuel Summersell | 52 | Head | Stock Clerk | Alabama |
| 55 | Vilate Summersell | 41 | Wife | — | Utah |
| 56 | B. Ray Summersell | 10 | Son | — | Utah |
| 57 | Sammy D. Summersell | 6 | Daughter | — | Utah |
| 58 | Millie Labrum | 71 | Mother-in-law | — | Utah |
| 59 | Bert D. Mensing | 47 | Head | Farmer | Utah |
| 60 | Vera Mensing | 39 | Wife | Housework | Utah |
| 61 | La Var Mensing | 21 | Son | Farmer | Utah |
| 62 | Cora Mensing | 20 | Daughter | — | Utah |
| 63 | Ronald Mensing | 16 | Son | — | Utah |
| 64 | Lillis Mensing | 13 | Daughter | — | Utah |
| 65 | Douglas Mensing | 10 | Son | — | Utah |
| 66 | Carroll M. Martell | 27 | Head | Architect | North Dakota |
| 67 | Anna Mae Martell | 28 | Wife | Nurse | Louisiana |
| 68 | Maxine Martell | 2 | Daughter | — | Oklahoma |
| 69 | Heber O'Neil | 28 | Head | Trucker | Utah |
| 70 | Ada O'Neil | 28 | Wife | — | Utah |
| 71 | Darlene O'Neil | 9 | Daughter | — | Utah |
| 72 | Gwen O'Neil | 5 | Daughter | — | Utah |
| 73 | John Zimmerman THIS PERSON | 43 | Head | Well Driller | Colorado |
| 74 | Gladys D. Zimmerman | 36 | Wife | — | Utah |
| 75 | Mae E. Zimmerman | 12 | Son | — | Utah |
| 76 | Ila R. Zimmerman | 9 | Daughter | — | Utah |
| 77 | John L. Zimmerman | 5 | Son | — | Utah |
| 78 | Grace B. Van | 47 | Head | — | Utah |
| 79 | Jerry Van | 8 | Son | — | Utah |
| 80 | Margaret Rose Van | 4 | Daughter | — | Utah |
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)