JF
John French — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this John French across the 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1909), then head of a 9-person household.
Age 31
b. ~1909
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | French |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Foreman |
| Industry | City Street Dept |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1560 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Foreman |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1909 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine French | Daughter | — | 1 | ~1939 |
| Joan French | Daughter | — | 9 | ~1931 |
| John French | Head | — | 31 | ~1909 |
| John French | Other | — | 62 | ~1878 |
| Richard French | Son | — | 3 | ~1937 |
| Robert French | Son | — | 3 | ~1937 |
| John French | Son | — | 8 | ~1932 |
| Thomas French | Son | — | 1 | ~1939 |
| Matilda French | Spouse | — | 29 | ~1911 |
Census Appearances
1930
Union, New …
Son, age 22
Union, New Jersey · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | French |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Rodman |
| Industry | City Engineer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Head, age 31
Union-County, New Jersey · implied b. ~1909 — 9 household members
| Surname | French |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Occupation | Foreman |
| Industry | City Street Dept |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1560 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 French across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John French
Head · 1940 · age 31 · b. ~1909 · 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-t0627-02400-00714)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lester Hammond | 50 | Head | Proprietor | Kentucky |
| 42 | Gladis Hammond | 46 | Wife | Bookkeeper | Kentucky |
| 43 | Curtis Hammond | 27 | Son | Assembler | Kentucky |
| 44 | Marian Hammond | 24 | Daughter | — | Erie Ireland |
| 45 | Ruth Hammond | 1 | Daughter | — | New Jersey |
| 46 | Benjamin Horowitz | 49 | Head | Window Cleaner | Austria |
| 47 | Clara C. Horowitz | 47 | Wife | — | Austria |
| 48 | Sol Horowitz | 18 | Son | Apprentice | New York |
| 49 | Celia Horowitz | 19 | Daughter | Typist | New Jersey |
| 50 | Milton Horowitz | 24 | Son | Press Worker | New York |
| 51 | Edith Horowitz | 22 | Daughter | Typist | New Jersey |
| 52 | Samuel Schnider | 42 | Head | Operator | Russia |
| 53 | Yetta Schnider | 40 | Wife | — | Russia |
| 54 | Joseph Schnider | 15 | Son | — | New Jersey |
| 55 | Isadore Schnider | 14 | Son | — | New Jersey |
| 56 | Reada Schnider | 7 | Daughter | — | New Jersey |
| 57 | John Connolly | 40 | Head | Clerk | New Jersey |
| 58 | Mary C. Connolly | 41 | Wife | — | New Jersey |
| 59 | Anna Connolly | 16 | Daughter | — | New Jersey |
| 60 | James Connolly | 14 | Son | — | New Jersey |
| 61 | Jean Connolly | 12 | Daughter | — | New Jersey |
| 62 | James J. Connolly | 65 | Head | Clerk | New York |
| 63 | Anna Connolly | 62 | Wife | — | New York |
| 64 | Benjamin Gelthen | 51 | Head | Builder | Russia |
| 65 | Marian Gelthen | 49 | Wife | — | Austria |
| 66 | Leon Gelthen | 28 | Son | Apprentice | Georgia |
| 67 | Helen Gelthen | 27 | Daughter | Saleswoman | Georgia |
| 68 | Fannie Gelthen | 25 | Daughter | Saleswoman | Georgia |
| 69 | Edith Gelthen | 22 | Daughter | — | New Jersey |
| 70 | Irving Gelthen | 14 | Son | — | New Jersey |
| 71 | John J. French THIS PERSON | 31 | Head | Foreman | New Jersey |
| 72 | Matilda French | 29 | Wife | — | New Jersey |
| 73 | Joan French | 9 | Daughter | — | New Jersey |
| 74 | John French | 8 | Son | — | New Jersey |
| 75 | Robert French | 3 | Son | — | New Jersey |
| 76 | Richard French | 3 | Son | — | New Jersey |
| 77 | Catherine French | 1 | Daughter | — | New Jersey |
| 78 | Thomas French | 1 | Son | — | New Jersey |
| 79 | John B. French | 62 | Father-in-law | Watchman | New Jersey |
| 80 | Marta Jacques | 32 | Head | Waiter | Canada French |
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)