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William Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Weld-County, Colorado
Our Model Tree links this William Hahn across the 1930 and 1940 US Censuses in Weld-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 5-person household.
Age 58
b. ~1882
Male
Head
Born: Russia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Weld-County, Colorado |
| Surname | Hahn |
| Given Name | William B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Windsor |
| 1935 Residence (County) | Weld |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 500 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
| Occupation | Farm Laborer |
| Township / Ward | Windsor |
| Est. Birth Year | ~1882 |
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 |
|---|---|---|---|---|
| Mary Hahn | Spouse | — | 58 | ~1882 |
| William Hahn | Head | — | 58 | ~1882 |
| Herman Hahn | Son | — | 18 | ~1922 |
| Robert Hahn | Son | — | 13 | ~1927 |
| Edward Hahn | Son | — | 16 | ~1924 |
Census Appearances
1930
Weld, Colorado
Head, age 49
Weld, Colorado · implied b. ~1881 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hahn |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Russia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 21 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | beet worker |
| Industry | farm |
| Class of Worker | W |
| Can Read/Write | No |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Veteran | No |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1940
Weld-County, Colorado
Head, age 58
Weld-County, Colorado · implied b. ~1882 — 5 household members
| Surname | Hahn |
| Given Name | William B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Windsor |
| 1935 Residence (County) | Weld |
| Naturalization Status | Naturalized |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 500 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
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 58 · b. ~1882 · Colorado
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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 — Weld-County, Colorado
Open full size
1940 US Federal Census — Weld-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00481-00187)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William B. Hahn THIS PERSON | 58 | Head | Farm Laborer | Russia |
| 42 | Mary Hahn | 58 | Wife | — | Russia |
| 43 | Herman Hahn | 18 | Son | — | Colorado |
| 44 | Edward Hahn | 16 | Son | — | Colorado |
| 45 | Robert Hahn | 13 | Son | — | Colorado |
| 46 | Jacob Kaltenberger | 44 | Head | — | Russia |
| 47 | Annie Kaltenberger | 68 | Wife | — | Russia |
| 48 | Henry Kaltenberger | 19 | Son | Farm Laborer | Colorado |
| 49 | Leah Kaltenberger | 24 | Daughter | — | Oklahoma |
| 50 | Katie Wiedeman | 40 | Head | — | Russia |
| 51 | Arthur Wiedeman | 20 | Son | Common Labor | Colorado |
| 52 | Robert Wiedeman | 18 | Son | Common Labor | Colorado |
| 53 | John Wiedeman | 16 | Son | Common Labor | Colorado |
| 54 | Dorrene Wiedeman | 14 | Daughter | — | Colorado |
| 55 | Albert Wiedeman | 12 | Son | — | Colorado |
| 56 | Raymond Wiedeman | 9 | Son | — | Colorado |
| 57 | Jacob Schanhals | 55 | Head | Common Laborer | Russia |
| 58 | Margaret Schanhals | 53 | Wife | — | Russia |
| 59 | Reuben Schanhals | 19 | Son | Common Laborer | Colorado |
| 60 | Victor Schanhals | 16 | Son | — | Colorado |
| 61 | Margaret Schanhals | 9 | Daughter | — | Colorado |
| 62 | Mike Sr. Putz | 63 | Head | Common Labor | Russia |
| 63 | Elizabeth A Putz | 61 | Wife | — | Russia |
| 64 | Jake Putz | 22 | Son | Common Labor | Colorado |
| 65 | Henry Huwa | 54 | Head | Carpenter | Russia |
| 66 | Mary Huwa | 54 | Wife | — | Russia |
| 67 | Jake Huwa | 19 | Son | Common Labor | Colorado |
| 68 | Katherine Huwa | 18 | Daughter | — | Colorado |
| 69 | Alex Huwa | 16 | Son | — | Colorado |
| 70 | Helen Huwa | 15 | Daughter | — | Colorado |
| 71 | Jacob Herber | 56 | Head | Carpenter | Russia |
| 72 | Christina Herber | 56 | Wife | — | Russia |
| 73 | Carl Herber | 19 | Son | — | Colorado |
| 74 | John Ulrich | 66 | Head | Common Labor | Russia |
| 75 | Christina Ulrich | 48 | Wife | — | Russia |
| 76 | Reuben Ulrich | 19 | Son | Common Labor | Colorado |
| 77 | Henry Held | 55 | Head | Common Labor | Russia |
| 78 | Katie Held | 54 | Wife | — | Russia |
| 79 | Freda Held | 21 | Daughter | — | Colorado |
| 80 | Henry C Fisher | 56 | Head | Common Labor | 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)