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John Keller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this John Keller across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.
Age 57
b. ~1883
Male
Head
Born: Hungary
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Keller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Elizabeth |
| 1935 Residence (County) | Union |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Machinist |
| Industry | Wire works |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 1350 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
| Occupation | Machinist |
| Township / Ward | Elizabeth |
| Est. Birth Year | ~1883 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Keller | Daughter | — | 20 | ~1920 |
| John Keller | Head | — | 57 | ~1883 |
| John Keller | Son | — | 27 | ~1913 |
| Agnes Keller | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Union, New …
Head, age 32
Union, New Jersey · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Hungary |
| Year of Immigration | 1910 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Machinist |
| Industry | Sewing machine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Birth Country | Hungary |
| Year of Naturalization | 1915 |
| Birthplace (normalized) | hungary |
1930
Union, New …
Head, age 47
Union, New Jersey · implied b. ~1883 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Hungary |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 22 |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Machinist |
| Industry | Wire Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Hungarian |
| Home Owned/Rented | R |
| Home Value / Rent | 7.00 |
| Radio Set | R |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1940
Union-County, New …
Head, age 57
Union-County, New Jersey · implied b. ~1883 — 4 household members
| Surname | Keller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Elizabeth |
| 1935 Residence (County) | Union |
| Naturalization Status | Naturalized |
| Occupation | Machinist |
| Industry | Wire works |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 1350 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
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 Keller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Keller
Head · 1940 · age 57 · b. ~1883 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02397-00685)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Doris Mattson | 13 | Daughter | — | New Jersey |
| 2 | John Keller THIS PERSON | 57 | Head | Machinist | Hungary |
| 3 | Agnes Keller | 53 | Wife | — | Hungary |
| 4 | John Jr. Keller | 27 | Son | Machinist | Hungary |
| 5 | Dorothy Keller | 20 | Daughter | Stenographer | New Jersey |
| 6 | Alex Yushinski | 67 | Head | Laborer | Austria |
| 7 | Fred Seary | 42 | Son-in-law | Riveter | New Jersey |
| 8 | Ella A. Seary | 40 | Daughter | — | New Jersey |
| 9 | Mary Seary | 19 | Daughter | Stenographer | New Jersey |
| 10 | Dolores Seary | 8 | Daughter | — | New Jersey |
| 11 | Michael Dwyer | 39 | Head | Asst To Unit Turner | New York |
| 12 | Christina Dwyer | 34 | Wife | — | New York |
| 13 | Michael Jr. Dwyer | 8 | Son | — | New Jersey |
| 14 | Elizabeth Dwyer | 5 | Daughter | — | New Jersey |
| 15 | John Jr. Mcadul | 27 | Head | Laborer | Pennsylvania |
| 16 | Anna Mcadul | 25 | Wife | — | Pennsylvania |
| 17 | John 3Rd. Mcadul | 2 | Son | — | New Jersey |
| 18 | Gerald Mcadul | 0 | Son | — | New Jersey |
| 19 | Barbara Ulant | 53 | Wife | — | Austria |
| 20 | Andrew Ulant | 15 | Son | — | New Jersey |
| 21 | Frank Christiansen | 50 | Head | Pump Man | Denmark |
| 22 | Sydna Christiansen | 45 | Wife | — | England |
| 23 | Martin Goscinski | 56 | Head | Foreman | Hungary |
| 24 | Margaret Goscinski | 54 | Wife | — | Hungary |
| 25 | John Goscinski | 25 | Son | Secretary | New Jersey |
| 26 | Mabel Thompson | 21 | Lodger | Clerk | New Jersey |
| 27 | Otto Grahum | 32 | Head | Clerical | New Jersey |
| 28 | Lillian Grahum | 31 | Wife | Assembly | New Jersey |
| 29 | John A. Flanagan | 41 | Head | Operator | New Jersey |
| 30 | Margaret Flanagan | 43 | Wife | — | New Jersey |
| 31 | Edith Flanagan | 18 | Daughter | Clerk | New Jersey |
| 32 | John Jr. Flanagan | 16 | Son | — | New Jersey |
| 33 | Gertrude Flanagan | 14 | Daughter | — | New Jersey |
| 34 | Rosella Flanagan | 11 | Daughter | — | New Jersey |
| 35 | Carlyle Gaylord | 29 | Head | Oiler | New Jersey |
| 36 | Mary A. Gaylord | 28 | Wife | — | New Jersey |
| 37 | Joan Gaylord | 3 | Daughter | — | New Jersey |
| 38 | Seymour Gaylord | 57 | Head | Stationary Engineer | New Jersey |
| 39 | Anna Gaylord | 54 | Wife | — | New York |
| 40 | Roger Gaylord | 28 | Son | Oiler | New Jersey |
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)