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William Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Wisconsin
Our Model Tree links this William Hahn across the 1930 and 1940 US Censuses in Jefferson-County, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 5-person household.
Age 55
b. ~1885
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Wisconsin |
| Surname | Hahn |
| Given Name | William A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Watertown Town |
| Additional Details | |
| Occupation | Farmer |
| Industry | On own farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Farmer |
| Township / Ward | Watertown Town |
| Est. Birth Year | ~1885 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Edward Reichert | Other | — | 30 | ~1910 |
| Della Hahn | Spouse | — | 52 | ~1888 |
| Robert Hahn | Son | — | 15 | ~1925 |
| William Hahn | Head | — | 55 | ~1885 |
| Florence Reichert | Daughter | — | 28 | ~1912 |
Census Appearances
1930
Jefferson, Wisconsin
Head, age 45
Jefferson, Wisconsin · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hahn |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 25 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Jefferson-County, Wisconsin
Head, age 55
Jefferson-County, Wisconsin · implied b. ~1885 — 5 household members
| Surname | Hahn |
| Given Name | William A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Watertown Town |
| Occupation | Farmer |
| Industry | On own farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 William Hahn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Hahn
Head · 1940 · age 55 · b. ~1885 · Wisconsin
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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 — Jefferson-County, Wisconsin
Open full size
1940 US Federal Census — Jefferson-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04485-01094)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Della E. Funk | 47 | Head | Farmer | Wisconsin |
| 2 | George L. Funk | 23 | Son | Farm Hand | Wisconsin |
| 3 | Helen N. Funk | 25 | Daughter | Teacher | Wisconsin |
| 4 | Hubby Fred Funk | 22 | Lodger | Blacksmith | Wisconsin |
| 5 | Donald G. Goedeck | 25 | Head | Laborer | Wisconsin |
| 6 | Fay A. Goedeck | 27 | Wife | Stenog. | Wisconsin |
| 7 | George D. Lowe | 70 | Head | Laborer | Ohio |
| 8 | Lona Lowe | 61 | Wife | — | Indiana |
| 9 | Anna M. Gisdler | 62 | Head | Farmer | Wisconsin |
| 10 | Charles Fritsch | 68 | Hired hand | Hired Hand | Wisconsin |
| 11 | Elizabeth A. Henning | 40 | Head | — | Germany |
| 12 | Otto E. Henning | 37 | Husband | Farmer | Wisconsin |
| 13 | Marlyn E. Staehler | 8 | Niece | — | Wisconsin |
| 14 | Ralph Polinsky | 19 | Hired man | Hired Man | Wisconsin |
| 15 | Thelma J. Reese | 14 | Maid | Maid | Wisconsin |
| 16 | Henry Indra | 61 | Head | Farmer | Wisconsin |
| 17 | Madaline F. Indra | 57 | Wife | — | Wisconsin |
| 18 | Lucille A. Indra | 23 | Daughter | Asst Chemist | Wisconsin |
| 19 | Francis A. Indra | 21 | Son | Laborer | Wisconsin |
| 20 | Virginia Indra | 19 | Daughter | Laborer | Wisconsin |
| 21 | Paul Indra | 15 | Son | — | Wisconsin |
| 22 | Laura Heiser | 55 | Head | Farmer | Wisconsin |
| 23 | John Heiser | 58 | Husband | Farmer | Wisconsin |
| 24 | Walter H. Schumacher | 50 | Head | Farmer | Wisconsin |
| 25 | Wilhelmina Schumacher | 45 | Wife | — | Wisconsin |
| 26 | Ruth F. Schumacher | 17 | Daughter | — | Wisconsin |
| 27 | Harold J. Schumacher | 12 | Son | — | Wisconsin |
| 28 | William A. Hahn THIS PERSON | 55 | Head | Farmer | Wisconsin |
| 29 | Della B. Hahn | 52 | Wife | — | Wisconsin |
| 30 | Robert Hahn | 15 | Son | — | Wisconsin |
| 31 | Florence E. Reichert | 28 | Daughter | — | Wisconsin |
| 32 | Edward J. Reichert | 30 | Son-in-law | Route Supervisor | Wisconsin |
| 33 | Johanna Garbrow | 75 | Head | — | Germany |
| 34 | Erich Garbrow | 34 | Son | Hired Man | Wisconsin |
| 35 | William H. Montegad | 41 | Head | Farmer | Wisconsin |
| 36 | Florence U. Montegad | 38 | Wife | — | Wisconsin |
| 37 | Elizabeth Montegad | 10 | Daughter | — | Wisconsin |
| 38 | Ray B. Sommerfeld | 33 | Head | Farmer | Wisconsin |
| 39 | Evelyn A. Sommerfeld | 31 | Wife | — | Wisconsin |
| 40 | Joan Sommerfeld | 2 | Daughter | — | Wisconsin |
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)