JK
John Kuhn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this John Kuhn across the 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 8-person household.
Age 21
b. ~1919
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Kuhn |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Machinist |
| Industry | Type Co. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 3263 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Machinist |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1919 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Kuhn | Head | — | 48 | ~1892 |
| Rita Jurdycki | Other | — | 16 | ~1924 |
| Donald Kuhn | Son | — | 9 | ~1931 |
| Louise Kuhn | Spouse | — | 50 | ~1890 |
| John Kuhn | Son | — | 21 | ~1919 |
| Dorothy Kuhn | Daughter | — | 23 | ~1917 |
| Vincent Kuhn | Son | — | 14 | ~1926 |
| Robert Kuhn | Son | — | 19 | ~1921 |
Census Appearances
1930
Union, New …
Son, age 11
Union, New Jersey · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kuhn |
| Given Name | John J. W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 21
Union-County, New Jersey · implied b. ~1919 — 8 household members
| Surname | Kuhn |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Occupation | Machinist |
| Industry | Type Co. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 3263 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Kuhn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kuhn
Son · 1940 · age 21 · b. ~1919 · New Jersey
★ You are viewing this record
Sibling
Dorothy Kuhn
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Kuhn
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Kuhn
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Kuhn
Sibling · 1940 · age 19
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 — 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-t0627-02400-00171)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Pauline Metard | 55 | Wife | — | New Jersey |
| 2 | Katherine West | 27 | Boarder | Maid | Florida |
| 3 | Frederick Walker | 35 | Head | Chauffeur | New Jersey |
| 4 | Ethel M. Walker | 35 | Wife | Cook | New Jersey |
| 5 | Jack Blumberg | 47 | Head | Doctor | New York |
| 6 | Leonora Blumberg | 44 | Wife | — | New Jersey |
| 7 | John Blumberg | 19 | Son | — | New Jersey |
| 8 | Adrian De Man | 42 | Head | Attorney | Holland |
| 9 | Elizabeth B. De Man | 36 | Wife | — | New Jersey |
| 10 | Elizabeth Hampson | 61 | Mother-in-law | — | New York |
| 11 | Vincent Lesneski | 31 | Head | Physician Director | Conn |
| 12 | Ruth Lesneski | 28 | Wife | — | Conn |
| 13 | Albert C. Lesneski | 4 | Son | — | Conn |
| 14 | William Keller | 35 | Head | Decorator | New Jersey |
| 15 | Margaret Keller | 38 | Wife | — | New Jersey |
| 16 | Robert Keller | 4 | Son | — | New Jersey |
| 17 | Theresa Keinig | 65 | Mother-in-law | — | New Jersey |
| 18 | Samuel Richmond | 69 | Head | Retired | Ireland |
| 19 | Mina Richmond | 68 | Wife | — | Ireland |
| 20 | Eleanor Grover | 70 | Head | — | New Jersey |
| 21 | Patrick F. Keelan | 50 | Head | Clerk | New York |
| 22 | Pauline Keelan | 45 | Wife | — | New Jersey |
| 23 | Paul Keelan | 17 | Son | — | New Jersey |
| 24 | John Keelan | 14 | Son | — | New Jersey |
| 25 | Ann Keelan | 9 | Daughter | — | New Jersey |
| 26 | Thomas F. Groll | 60 | Head | Foreman | New Jersey |
| 27 | Della Groll | 50 | Wife | — | Ireland |
| 28 | Ellen C. Faughnan | 61 | Lodger | Clerk | New Jersey |
| 29 | Margaret Riley | 34 | Head | Teacher | New Jersey |
| 30 | Janet Riley | 55 | Mother | — | New Jersey |
| 31 | Nellie Groll | 55 | Aunt | — | New Jersey |
| 32 | John J. Kuhn | 48 | Head | Engineer | New Jersey |
| 33 | Louise Kuhn | 50 | Wife | — | New Jersey |
| 34 | Dorothy M. Kuhn | 23 | Daughter | Secretary | New Jersey |
| 35 | John J. Kuhn THIS PERSON | 21 | Son | Machinist | New Jersey |
| 36 | Robert B. Kuhn | 19 | Son | — | New Jersey |
| 37 | Vincent Kuhn | 14 | Son | — | New Jersey |
| 38 | Donald H. Kuhn | 9 | Son | — | New Jersey |
| 39 | Rita Jurdycki | 16 | Maid | Maid | Pennsylvania |
| 40 | Herbert Blossom | 80 | Head | Retired | New York |
Related Census Records
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)