EC
Eugene Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bergen-County, New Jersey
Our Model Tree links this Eugene Clark across the 1930 and 1940 US Censuses in Bergen-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bergen-County, New Jersey |
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Ridgefield |
| 1935 Residence (County) | Bergen |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | y 7 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Ridgefield |
| Est. Birth Year | ~1925 |
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 Eugene | Age | Birth yr |
|---|---|---|---|---|
| Joseph Clark | Head | — | 41 | ~1899 |
| Louise Clark | Daughter | — | 18 | ~1922 |
| Helen Clark | Daughter | — | 13 | ~1927 |
| Louise Clark | Spouse | — | 42 | ~1898 |
| Eugene Clark | Son | — | 15 | ~1925 |
| Dorothy Clark | Daughter | — | 14 | ~1926 |
| John Clark | Son | — | 21 | ~1919 |
| Joseph Clark | Son | — | 8 | ~1932 |
Census Appearances
1930
New York, …
Other, age 4
New York, New York · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Bergen-County, New …
Son, age 15
Bergen-County, New Jersey · implied b. ~1925 — 8 household members
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Ridgefield |
| 1935 Residence (County) | Bergen |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | y 7 |
| 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 Eugene Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eugene Clark
Son · 1940 · age 15 · b. ~1925 · New Jersey
★ You are viewing this record
Sibling
Joseph Clark
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Clark
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Clark
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Clark
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Clark
Sibling · 1940 · age 14
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 — Bergen-County, New Jersey
Open full size
1940 US Federal Census — Bergen-County, New Jersey
Page Contents
10 people indexed on this census page (nara:1940:m-t0627-02313-00116)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur Cook | 15 | Son | — | New Jersey |
| 42 | Anna Cook | 14 | Daughter | — | New Jersey |
| 43 | Joseph Clark | 41 | Head | Cotton Mixer | Rhode Island |
| 44 | Louise Clark | 42 | Wife | — | New Jersey |
| 45 | John Clark | 21 | Son | Shaper | New York |
| 46 | Louise Clark | 18 | Daughter | — | New Jersey |
| 47 | Eugene Clark THIS PERSON | 15 | Son | — | New Jersey |
| 48 | Dorothy Clark | 14 | Daughter | — | New Jersey |
| 49 | Helen Clark | 13 | Daughter | — | New Jersey |
| 50 | Joseph Clark | 8 | Son | — | 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)