JZ
John Zimmerman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sumner-County, Kansas
Our Model Tree links this John Zimmerman across the 1920, 1930 and 1940 US Censuses in Sumner-County, Kansas (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumner-County, Kansas |
| Surname | Zimmerman |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Harmon Township |
| 1935 Residence (County) | Sumner |
| Additional Details | |
| Occupation | No |
| Industry | No |
| Class of Worker | No |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Harmon Township |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Zimmerman | Head | — | 49 | ~1891 |
| John Zimmerman | Son | — | 21 | ~1919 |
| Quentin Zimmerman | Son | — | 19 | ~1921 |
| Ruth Zimmerman | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Sumner, Kansas
Son, age 1
Sumner, Kansas · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John S. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Sumner, Kansas
Son, age 11
Sumner, Kansas · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John J. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Sumner-County, Kansas
Son, age 21
Sumner-County, Kansas · implied b. ~1919 — 4 household members
| Surname | Zimmerman |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Harmon Township |
| 1935 Residence (County) | Sumner |
| Occupation | No |
| Industry | No |
| Class of Worker | No |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 John Zimmerman (~0.92 confidence) and father John Zimmerman (~0.92 confidence) and mother Ruth Zimmerman (~0.92 confidence) and mother Ruth Zimmerman (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Zimmerman
b. ~1891
Source father
● Household
· direct · ~0.92
Father
John Zimmerman
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Ruth Zimmerman
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Ruth Zimmerman
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Zimmerman
Son · 1940 · age 21 · b. ~1919 · Kansas
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Sibling
Quentin Zimmerman
Sibling · 1940 · age 19
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 — Sumner-County, Kansas
Open full size
1940 US Federal Census — Sumner-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01263-00494)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vernon Genach | 17 | Son | No | Kansas |
| 2 | L. A. Waterson | 56 | Head | Farmer | Kansas |
| 3 | Margaret Waterson | 52 | Wife | No | Kansas |
| 4 | Bert Hollingworth | 58 | Head | Farmer | Kansas |
| 5 | Bertha Hollingworth | 56 | Wife | No | Kansas |
| 6 | Wayne Hollingworth | 30 | Son | No | Kansas |
| 7 | Lee Loran | 22 | Son | Farmer | Kansas |
| 8 | Edith May Loran | 20 | Daughter | No | Kansas |
| 9 | Landis Clarabel Loran | 6 | Granddaughter | — | Kansas |
| 10 | Howard Zimmerman | 31 | Head | Farmer | Kansas |
| 11 | Ethel M. Zimmerman | 30 | Wife | No | Kansas |
| 12 | John C. Zimmerman | 8 | Son | — | Kansas |
| 13 | Marline Zimmerman | 6 | Daughter | — | Kansas |
| 14 | J. W. Dryer | 53 | Head | Farmer | Illinois |
| 15 | Elizabeth Dryer | 48 | Wife | No | Kansas |
| 16 | Lawrence Dryer | 27 | Son | Mechanic | Kansas |
| 17 | Winifred Mingle | 19 | Boarder | Teacher | Kansas |
| 18 | Billie Diemer | 77 | Head | No | Ohio |
| 19 | Warren Diemer | 29 | Grandson | Farmer | Wyoming |
| 20 | Lillie Lawhorn | 19 | Granddaughter | No | Kansas |
| 21 | Bertha Lawhorn | 2 | Daughter | — | Missouri |
| 22 | G. N. Horner | 50 | Head | Farmer | Tennessee |
| 23 | Gertie Horner | 44 | Wife | No | Texas |
| 24 | Howard Horner | 19 | Son | Helper | Kansas |
| 25 | Kenneth Horner | 16 | Son | No | Kansas |
| 26 | Ruby Horner | 14 | Daughter | No | Kansas |
| 27 | Elsie Horner | 10 | Daughter | — | Kansas |
| 28 | Wendle Horner | 7 | Son | — | Kansas |
| 29 | Meryle Horner | 1 | Daughter | — | Kansas |
| 30 | Theo. Zimmerman | 60 | Head | Farmer | Illinois |
| 31 | Josephine Zimmerman | 60 | Wife | No | Kansas |
| 32 | Darwin Zimmerman | 21 | Son | Laborer | Kansas |
| 33 | John P. Mccormick | 47 | Head | Farmer | Kansas |
| 34 | Vivian Mccormick | 46 | Wife | No | Kansas |
| 35 | Martha Ab Mccormick | 20 | Daughter | Library Worker | Kansas |
| 36 | Mary Beth Mccormick | 13 | Daughter | — | Kansas |
| 37 | John J. Zimmerman | 49 | Head | Farmer | Illinois |
| 38 | Ruth Zimmerman | 48 | Wife | No | Illinois |
| 39 | John Jr. Zimmerman THIS PERSON | 21 | Son | No | Kansas |
| 40 | Quentin Zimmerman | 19 | Son | No | Kansas |
Pedigree Summary
John + 1 sibling
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)