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William Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jackson-County, Missouri
Our Model Tree links this William Hahn across the 1930 and 1940 US Censuses in Jackson-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jackson-County, Missouri |
| Surname | Hahn |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Kansas City |
| Est. Birth Year | ~1925 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Paul Haas | Other | — | 49 | ~1891 |
| Pauline Hahn | Daughter | — | 16 | ~1924 |
| Marjorie Hahn | Daughter | — | 14 | ~1926 |
| Fredia Hahn | Spouse | — | 56 | ~1884 |
| Carl Hahn | Head | — | 58 | ~1882 |
| William Hahn | Son | — | 15 | ~1925 |
Census Appearances
1930
Jackson, Missouri
Son, age 5
Jackson, Missouri · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hahn |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Jackson-County, Missouri
Son, age 15
Jackson-County, Missouri · implied b. ~1925 — 6 household members
| Surname | Hahn |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Class of Worker | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 15 · b. ~1925 · Missouri
★ You are viewing this record
Sibling
Marjorie Hahn
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Hahn
Sibling · 1940 · age 16
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 — Jackson-County, Missouri
Open full size
1940 US Federal Census — Jackson-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02178-00676)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur H. Lundberg | 12 | son | — | Missouri |
| 2 | Donna Mae Lundberg | 10 | daughter | — | Missouri |
| 3 | John David Lundberg | 7 | son | — | Missouri |
| 4 | Norma L. Thompson | 49 | Head | — | Missouri |
| 5 | Beatrice Thompson | 24 | daughter | Dental Assistant | Missouri |
| 6 | Alma Thompson | 20 | daughter | Undergraduate Nurse | Missouri |
| 7 | Ray H. Thompson | 4 | grandson | — | Missouri |
| 8 | Pearl H. Baughman | 70 | Head | — | Ohio |
| 9 | H. M. Miller | 35 | Head | Iron Worker | Iowa |
| 10 | Mona Miller | 27 | wife | — | North Dakota |
| 11 | Ramon Miller | 6 | son | — | Iowa |
| 12 | Harvey L. Mccoy | 48 | Head | Steam Fitter | Missouri |
| 13 | Ora Mccoy | 39 | wife | — | Arkansas |
| 14 | Colleen Mccoy | 15 | daughter | — | Missouri |
| 15 | Patricia Mccoy | 7 | daughter | — | Missouri |
| 16 | Carl Hahn | 58 | Head | Laborer | Germany |
| 17 | Fredia Hahn | 56 | wife | — | Germany |
| 18 | Pauline Hahn | 16 | daughter | — | Missouri |
| 19 | William Hahn THIS PERSON | 15 | son | — | Missouri |
| 20 | Marjorie Hahn | 14 | daughter | — | Missouri |
| 21 | Paul Haas | 49 | brother-in-law | Laborer | Germany |
| 22 | Mamie Foreman | 60 | Head | — | Missouri |
| 23 | Elmer Dobson | 44 | son | Radio Repair Man | Missouri |
| 24 | Forrest Crum | 26 | Head | Warehouse Man | Missouri |
| 25 | Allene Crum | 26 | wife | — | Missouri |
| 26 | Allen Ray Crum | 3 | son | — | Missouri |
| 27 | — | None | — | — | — |
| 28 | Robert F. Page | 35 | Head | Trimmer | Missouri |
| 29 | Helen Page | 30 | wife | — | Missouri |
| 30 | Earl Mahicap | 27 | Head | Oiler Laborer | Missouri |
| 31 | Katherine Mahicap | 20 | wife | — | Missouri |
| 32 | Owen Earl Mahicap | 3 | son | — | Missouri |
| 33 | Patricia Ann Mahicap | 1 | daughter | — | Missouri |
| 34 | M. H. Hill | 41 | Head | — | Oklahoma |
| 35 | Barker H. Hill | 18 | son | — | Missouri |
| 36 | Madam Lee Hill | 17 | daughter | — | Missouri |
| 37 | Ora John Pennington | 45 | Head | Watchman | Missouri |
| 38 | Elizabeth Pennington | 28 | wife | — | Missouri |
| 39 | Ora John Jr. Pennington | 8 | son | — | Missouri |
| 40 | Harley C. Pennington | 7 | son | — | Missouri |
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)