JK
John Kaiser — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Trego-County, Kansas
Our Model Tree links this John Kaiser across the 1930 and 1940 US Censuses in Trego-County, Kansas (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Trego-County, Kansas |
| Surname | Kaiser |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Collyer |
| 1935 Residence (County) | Trego |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Collyer |
| Est. Birth Year | ~1922 |
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 |
|---|---|---|---|---|
| John Kaiser | Son | — | 18 | ~1922 |
| Frances Kaiser | Daughter | — | 9 | ~1931 |
| Ferdinand Kaiser | Son | — | 14 | ~1926 |
| Nick Kaiser | Head | — | 46 | ~1894 |
| Theresia Kaiser | Spouse | — | 45 | ~1895 |
| Mary Kaiser | Daughter | — | 11 | ~1929 |
| Rosa Kaiser | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Gove, Kansas
Son, age 8
Gove, Kansas · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kaiser |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Russia |
| Mother's Birthplace | Rumania |
| Occupation | none |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Trego-County, Kansas
Son, age 18
Trego-County, Kansas · implied b. ~1922 — 7 household members
| Surname | Kaiser |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Collyer |
| 1935 Residence (County) | Trego |
| Highest Grade | Hs 4 |
| 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 Kaiser across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kaiser
Son · 1940 · age 18 · b. ~1922 · Kansas
★ You are viewing this record
Sibling
Rosa Kaiser
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Kaiser
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ferdinand Kaiser
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Kaiser
Sibling · 1940 · age 9
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 — Trego-County, Kansas
Open full size
1940 US Federal Census — Trego-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01264-00219)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harlan W. Barton | 39 | Head | Depot Agent | Iowa |
| 2 | Florence Barton | 39 | Wife | — | Iowa |
| 3 | Leona Barton | 14 | Daughter | — | Iowa |
| 4 | Harlan Barton | 11 | Son | — | Kansas |
| 5 | Nick Kaiser | 46 | Head | Rock Mason | Russia |
| 6 | Theresia Kaiser | 45 | Wife | — | Austria |
| 7 | John Kaiser THIS PERSON | 18 | Son | — | Kansas |
| 8 | Ferdinand Kaiser | 14 | Son | — | Kansas |
| 9 | Rosa Kaiser | 13 | Daughter | — | Kansas |
| 10 | Mary Kaiser | 11 | Daughter | — | Kansas |
| 11 | Frances Kaiser | 9 | Daughter | — | Kansas |
| 12 | R. F. Dean | 45 | Head | Superintendent | Illinois |
| 13 | Virginia Dean | 47 | Wife | — | Colorado |
| 14 | Eileen Dean | 19 | Daughter | — | Colorado |
| 15 | Virginia Dean | 10 | Daughter | — | Colorado |
| 16 | Frank Fomanek | 49 | Head | Carpenter | Kansas |
| 17 | Connally Rosa Fomanek | 31 | Sister | — | Kansas |
| 18 | Charles Fomanek | 6 | Nephew | — | Kansas |
| 19 | Ollie Pearl Fomanek | 4 | Niece | — | Kansas |
| 20 | Mary Fomanek | 44 | Sister | Housekeeper | Kansas |
| 21 | William Fomanek | 29 | Brother | Truck Driver | Kansas |
| 22 | Fred Fomanek | 34 | Head | Mechanic | Kansas |
| 23 | Rosa Fomanek | 33 | Wife | Saleswoman | Kansas |
| 24 | Maxine Fomanek | 10 | Daughter | — | Kansas |
| 25 | Laverne Fomanek | 4 | Son | — | Kansas |
| 26 | James Staples | 39 | Head | Attendant | Colorado |
| 27 | Rosa Zeman | 47 | Head | Operator | Kansas |
| 28 | Ora Hauss | 30 | Roomer | Clerk | Kansas |
| 29 | George P. Malsom | 22 | Roomer | Mechanic | Kansas |
| 30 | Galen D. Reinheimer | 44 | Head | Foreman | Missouri |
| 31 | Gift Reinheimer | 31 | Wife | — | Colorado |
| 32 | Frances Reinheimer | 10 | Daughter | — | Wyoming |
| 33 | Dickey Reinheimer | 8 | Son | — | Wyoming |
| 34 | Roger Reinheimer | 7 | Son | — | Kansas |
| 35 | Aldie Reinheimer | 5 | Daughter | — | Wyoming |
| 36 | Launtin Reinheimer | 3 | Son | — | Kansas |
| 37 | Ed Miller | 39 | Head | Laborer | Kansas |
| 38 | Mary Miller | 30 | Wife | — | Missouri |
| 39 | Trudy Miller | 14 | Son | — | Kansas |
| 40 | John J. Ziegler | 40 | Head | Operator | Russia |
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)