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William Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Minnesota
Our Model Tree links this William Hahn across the 1930 and 1940 US Censuses in Scott-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 5-person household.
Age 19
b. ~1921
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Minnesota |
| Surname | Hahn |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Jordan City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Jordan City |
| Est. Birth Year | ~1921 |
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 |
|---|---|---|---|---|
| Lydia Hahn | Spouse | — | 40 | ~1900 |
| William Hahn | Son | — | 19 | ~1921 |
| Roy Hahn | Head | — | 44 | ~1896 |
| Dick Hahn | Son | — | 10 | ~1930 |
| Gerard Hahn | Son | — | 16 | ~1924 |
Census Appearances
1930
Scott, Minnesota
Son, age 9
Scott, Minnesota · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hahn |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Scott-County, Minnesota
Son, age 19
Scott-County, Minnesota · implied b. ~1921 — 5 household members
| Surname | Hahn |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Jordan City |
| 1935 Residence (County) | Scott |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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
Son · 1940 · age 19 · b. ~1921 · Minnesota
★ You are viewing this record
Sibling
Gerard Hahn
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dick Hahn
Sibling · 1940 · age 10
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 — Scott-County, Minnesota
Open full size
1940 US Federal Census — Scott-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01958-00241)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fred Wermerskirchen | 81 | Head | — | Germany |
| 42 | Margaret Wermerskirchen | 71 | Wife | — | Minnesota |
| 43 | Patricia Theis | 61 | Head | — | Minnesota |
| 44 | James Karl | 36 | Head | Truck Driver | Minnesota |
| 45 | Alice Karl | 31 | Wife | — | Montana |
| 46 | Barbara Karl | 4 | Daughter | — | Minnesota |
| 47 | Robert Krickef | 26 | Head | Mechanic | Minnesota |
| 48 | Lola Krickef | 21 | Wife | — | Minnesota |
| 49 | Robert Jr. Krickef | 4 | Son | — | Minnesota |
| 50 | Karen Krickef | 1 | Daughter | — | Minnesota |
| 51 | Elizabeth Krickef | 12 | Daughter | — | Minnesota |
| 52 | William Will | 62 | Head | — | Germany |
| 53 | Mary Will | 62 | Wife | — | Germany |
| 54 | Hilda Will | 22 | Daughter | Servant | Minnesota |
| 55 | Katherine Hartman | 74 | Head | — | Wisconsin |
| 56 | Ernestina Selz | 72 | Head | — | Germany |
| 57 | Leander Selz | 34 | Son | Well Driller | Minnesota |
| 58 | Alma Selz | 33 | Daughter-in-law | — | Minnesota |
| 59 | Chester Schmith | 36 | Head | Proprietor - Manager | North Dakota |
| 60 | May Schmith | 36 | Wife | — | Minnesota |
| 61 | Elizabeth Schmith | 1 | Daughter | — | Minnesota |
| 62 | William J. Schmith | 65 | Father | — | Wisconsin |
| 63 | Elizabeth Schmith | 72 | Mother | — | New York |
| 64 | George Belden | 41 | Head | Barber | Illinois |
| 65 | Mildred Belden | 40 | Wife | — | Minnesota |
| 66 | Elizabeth Belden | 17 | Daughter | — | Minnesota |
| 67 | Calvert Belden | 12 | Son | — | Minnesota |
| 68 | Susanne Belden | 9 | Daughter | — | Minnesota |
| 69 | Ida Marxen | 40 | Head | — | Minnesota |
| 70 | Hillard Marxen | 18 | Son | Laborer | Minnesota |
| 71 | Frank Haller | 72 | Head | — | Minnesota |
| 72 | Mary Haller | 62 | Wife | — | Minnesota |
| 73 | Joseph Haller | 75 | Brother | — | Minnesota |
| 74 | Bruno Seez | 23 | Head | Buttermaker | Minnesota |
| 75 | Margaret Seez | 20 | Wife | — | Minnesota |
| 76 | Roy Hahn | 44 | Head | Proprietor | Minnesota |
| 77 | Lydia Hahn | 40 | Wife | Clerk | Minnesota |
| 78 | William Hahn THIS PERSON | 19 | Son | — | Minnesota |
| 79 | Gerard Hahn | 16 | Son | Clerk | Minnesota |
| 80 | Dick Hahn | 10 | Son | — | Minnesota |
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)