JH
John Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sedgwick-County, Kansas
Our Model Tree links this John Hahn across the 1930 and 1940 US Censuses in Sedgwick-County, Kansas (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 6-person household.
Age 37
b. ~1903
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sedgwick-County, Kansas |
| Surname | Hahn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Afton Township |
| 1935 Residence (County) | Sedgwick |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farmer |
| Township / Ward | Afton Township |
| Est. Birth Year | ~1903 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Doris Hahn | Daughter | — | 6 | ~1934 |
| Albert Hahn | Son | — | 14 | ~1926 |
| John Hahn | Head | — | 37 | ~1903 |
| John Hahn | Son | — | 12 | ~1928 |
| Theresa Hahn | Spouse | — | 37 | ~1903 |
| Mary Hahn | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Sedgwick, Kansas
Head, age 29
Sedgwick, Kansas · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hahn |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 20 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Minnesota |
| Occupation | farmer |
| Industry | own farm |
| Class of Worker | VVVV E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Sedgwick-County, Kansas
Head, age 37
Sedgwick-County, Kansas · implied b. ~1903 — 6 household members
| Surname | Hahn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Afton Township |
| 1935 Residence (County) | Sedgwick |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 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 Hahn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hahn
Head · 1940 · age 37 · b. ~1903 · Kansas
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sedgwick-County, Kansas
Open full size
1940 US Federal Census — Sedgwick-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01258-00126)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grace E Denison | 25 | Daughter | — | Kansas |
| 42 | Esther Denison | 25 | Daughter | — | Kansas |
| 43 | Martin Hess | 71 | Head | Farmer | Kansas |
| 44 | Helen Hess | 71 | Wife | — | Kansas |
| 45 | Howard Halderman | 40 | Head | Farmer | Kansas |
| 46 | John Hahn THIS PERSON | 37 | Head | Farmer | Kansas |
| 47 | Theresa A Hahn | 37 | Wife | — | Kansas |
| 48 | Albert P Hahn | 14 | Son | — | Kansas |
| 49 | John Hahn | 12 | Son | — | Kansas |
| 50 | Mary Lou Hahn | 7 | Daughter | — | Kansas |
| 51 | Doris E Hahn | 6 | Daughter | — | Kansas |
| 52 | William Tassen | 73 | Head | Operator | Oklahoma |
| 53 | Mary E Tassen | 29 | Wife | — | Oklahoma |
| 54 | Bently Tassen | 16 | Son | — | Kansas |
| 55 | Marilyn Tassen | 14 | Daughter | — | Kansas |
| 56 | Ted White | 12 | Son | — | Kansas |
| 57 | William Tassen | 11 | Son | — | Kansas |
| 58 | Evan G Tassen | 3 | Son | — | Kansas |
| 59 | Zenobia Ross | 40 | Maid | Maid | Oklahoma |
| 60 | Julius Seidel | 30 | Head | Farmer | Kansas |
| 61 | Elizabeth Seidel | 26 | Wife | — | Kansas |
| 62 | Hugo D Seidel | 1 | Son | — | Kansas |
| 63 | John Seidel | 17 | Brother | Laborer | Kansas |
| 64 | John Q Kershner | 50 | Head | Farmer | Missouri |
| 65 | Anna Kershner | 48 | Wife | — | Kansas |
| 66 | Abby Eloise Kershner | 22 | Son | Farm Laborer | Kansas |
| 67 | Edward Kershner | 21 | Son | Laborer | Kansas |
| 68 | Lillie Kershner | 19 | Daughter | — | Kansas |
| 69 | Leo Kershner | 16 | Son | — | Kansas |
| 70 | Elmer Kershner | 14 | Son | — | Kansas |
| 71 | Eugene Kershner | 12 | Son | — | Kansas |
| 72 | Chester Means | 39 | Head | Farmer | Kansas |
| 73 | Ellen C Means | 73 | Mother | — | Sweden |
| 74 | Ted L Kruse | 32 | Head | Farmer | Kansas |
| 75 | Agnes Kruse | 31 | Wife | — | Kansas |
| 76 | Betty Louise Kruse | 2 | Daughter | — | Kansas |
| 77 | Marilyn J Kruse | 1 | Daughter | — | Kansas |
| 78 | George Starr | 17 | Hired boy | Laborer | Kansas |
| 79 | Joe Kyle | 83 | Head | Farmer | Illinois |
| 80 | Mary Kyle | 81 | Wife | — | Pennsylvania |
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)