JH
John Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Larimer-County, Colorado
Our Model Tree links this John Hahn across the 1930 and 1940 US Censuses in Larimer-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 5-person household.
Age 39
b. ~1901
Male
Head
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Larimer-County, Colorado |
| Surname | Hahn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Precinct 36 South Berthoud |
| 1935 Residence (County) | Larimer |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Farmer |
| Township / Ward | Precinct 36 South Berthoud |
| Est. Birth Year | ~1901 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Hahn | Head | — | 39 | ~1901 |
| Emma Hahn | Spouse | — | 29 | ~1911 |
| Mildred Hahn | Daughter | — | 8 | ~1932 |
| Bernice Hahn | Daughter | — | 12 | ~1928 |
| John Hahn | Son | — | 3 | ~1937 |
Census Appearances
1930
Larimer, Colorado
Head, age 31
Larimer, Colorado · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hahn |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 20 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Larimer-County, Colorado
Head, age 39
Larimer-County, Colorado · implied b. ~1901 — 5 household members
| Surname | Hahn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Precinct 36 South Berthoud |
| 1935 Residence (County) | Larimer |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 39 · b. ~1901 · 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 — Larimer-County, Colorado
Open full size
1940 US Federal Census — Larimer-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00467-00555)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Tony Meis | 7 | Son | — | Kansas |
| 2 | Jerome Meis | 6 | Son | — | Kansas |
| 3 | Mary Meis | 4 | Daughter | — | Kansas |
| 4 | Wayne Meis | 1 | Son | — | Kansas |
| 5 | Louise Stecklein | 17 | Step-dau | — | Kansas |
| 6 | Alvin Stecklein | 16 | Step-son | — | Kansas |
| 7 | Victor Thompson | 22 | Head | Carpenter-Farmer | Kentucky |
| 8 | Delores Thompson | 16 | Wife | — | Colorado |
| 9 | Shirley Jean Thompson | 1 | Daughter | — | Colorado |
| 10 | Millard Thompson | 20 | Brother | Porter | Kentucky |
| 11 | John Hahn THIS PERSON | 39 | Head | Farmer | Nebraska |
| 12 | Emma Hahn | 29 | Wife | — | North Dakota |
| 13 | Bernice Hahn | 12 | Daughter | — | Colorado |
| 14 | Mildred Hahn | 8 | Daughter | — | Colorado |
| 15 | John H. Hahn | 3 | Son | — | Colorado |
| 16 | Clyde Welsh | 34 | Head | Farmer | Colorado |
| 17 | Hazel Welsh | 33 | Wife | — | Colorado |
| 18 | Helen Welsh | 10 | Daughter | — | Colorado |
| 19 | Dale Welsh | 8 | Son | — | Colorado |
| 20 | Lillian Welsh | 6 | Daughter | — | Colorado |
| 21 | Con Schleger | 27 | Head | Labor | Colorado |
| 22 | Alma Schleger | 17 | Wife | Stenographer-Clerk | Colorado |
| 23 | Wilbert Buehler | 44 | Head | Farmer | Missouri |
| 24 | Sofa Buehler | 71 | Mother | — | Ohio |
| 25 | Hoyt Buehler | 18 | Son | Farmer | Colorado |
| 26 | Nadine Buehler | 16 | Daughter | — | Colorado |
| 27 | Edwin Buehler | 13 | Son | — | Colorado |
| 28 | Rose Marie Buehler | 12 | Daughter | — | Colorado |
| 29 | Robert Lee Buehler | 8 | Son | — | Colorado |
| 30 | Ira T. Edmondson | 58 | Head | Farmer | Indiana |
| 31 | Ella Edmondson | 57 | Wife | — | Iowa |
| 32 | Bruce Lou Edmondson | 19 | Son | Clerical | Colorado |
| 33 | William Greek | 28 | Head | Labor | North Dakota |
| 34 | Katherine Greek | 28 | Wife | — | Nebraska |
| 35 | Melvin Greek | 9 | Son | — | Colorado |
| 36 | Hurley Greek | 7 | Daughter | — | Colorado |
| 37 | Jeanett Greek | 2 | Daughter | — | Colorado |
| 38 | Troy Buehler | 34 | Head | Farmer Thresher | Missouri |
| 39 | Mary Buehler | 31 | Wife | — | Colorado |
| 40 | Elsie Mae Buehler | 10 | Daughter | — | Colorado |
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)