JH
John Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this John Hahn across the 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 6-person household.
Age 53
b. ~1887
Male
Head
Born: Russia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Hahn |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 308 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
| Occupation | Carpenter |
| Township / Ward | Portland City |
| Est. Birth Year | ~1887 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Hahn | Head | — | 53 | ~1887 |
| Angie Hahn | Spouse | — | 45 | ~1895 |
| James Gilchrist | Other | — | 25 | ~1915 |
| Ray Hahn | Son | — | 25 | ~1915 |
| Dorothy Gilchrist | Daughter | — | 21 | ~1919 |
| Edward Hahn | Son | — | 24 | ~1916 |
Census Appearances
1930
Multnomah, Oregon
Head, age 42
Multnomah, Oregon · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hahn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Russia |
| Age at First Marriage | 1913 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | 19.50 |
| Veteran | R |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1940
Multnomah-County, Oregon
Head, age 53
Multnomah-County, Oregon · implied b. ~1887 — 6 household members
| Surname | Hahn |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Naturalization Status | Naturalized |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 308 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 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 53 · b. ~1887 · Oregon
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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 — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03392-00851)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ardath Mahar | 26 | Head | — | Oregon |
| 2 | Gerald L Mahar | 2 | Son | — | Oregon |
| 3 | Gloria G Mahar | 1 | Daughter | — | Oregon |
| 4 | Isabell G Bigley | 33 | Head | Pantry Cook | Minnesota |
| 5 | Robert G Bigley | 15 | Son | — | Oregon |
| 6 | Ray L Caldwell | 24 | Lodger | — | Washington |
| 7 | James J Blake | 55 | Head | Accountant | New York |
| 8 | Anna S Blake | 53 | Wife | — | Missouri |
| 9 | J Gordon Blake | 18 | Son | — | Oregon |
| 10 | Joseph C Cheddle | 52 | Head | Carpenter | Wisconsin |
| 11 | Alice M Cheddle | 52 | Wife | — | Minnesota |
| 12 | Joseph E Cheddle | 22 | Son | Helper | North Dakota |
| 13 | Valance Cheddle | 19 | Daughter | — | North Dakota |
| 14 | Vincent S Cheddle | 15 | Son | — | North Dakota |
| 15 | Margaret Hadwen | 23 | Daughter | — | North Dakota |
| 16 | Theodore Hadwen | 4 | Son | — | Montana |
| 17 | Henry Bauman | 28 | Head | Salesman | Oregon |
| 18 | Mildred M Bauman | 23 | Wife | — | Oregon |
| 19 | Wallace Yandreth | 44 | Head | Printer | Oregon |
| 20 | Mabel R Yandreth | 47 | Wife | — | Minnesota |
| 21 | Arne K Olofson | 47 | Head | Welder | Sweden |
| 22 | Elsa M Olofson | 47 | Wife | Waitress | Oregon |
| 23 | Cora A Wengler | 45 | Head | Secretarial | Illinois |
| 24 | Barbara Wengler | 81 | Mother | — | Indiana |
| 25 | John A Hahn THIS PERSON | 53 | Head | Carpenter | Russia |
| 26 | Angie Hahn | 45 | Wife | — | Missouri |
| 27 | Ray Hahn | 25 | Son | Machine Operator | Washington |
| 28 | Edward Hahn | 24 | Son | — | Washington |
| 29 | Dorothy Gilchrist | 21 | Daughter | — | Oregon |
| 30 | James Gilchrist | 25 | Son-in-law | Machinist | Michigan |
| 31 | Chas W Groom | 54 | Head | Forester | Oregon |
| 32 | Alice B Groom | 48 | Wife | — | Oregon |
| 33 | Chas Jr Groom | 5 | Son | — | Oregon |
| 34 | Ardath Groom | 16 | Sister | — | Oregon |
| 35 | Reuben S Million | 24 | Head | Chemist | Washington |
| 36 | M Phillis Million | 24 | Wife | — | Washington |
| 37 | Richard P Million | 1 | Son | — | Washington |
| 38 | Stanley A Nash | 23 | Head | Truck Driver | Oregon |
| 39 | Ella Nash | 22 | Wife | — | Oregon |
| 40 | Robert S Nash | 1 | Son | — | Oregon |
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)