HC
Harry Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Harry Cooper across the 1910, 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents David & Morris — first a head (b.~1899), then head of a 5-person household.
Age 41
b. ~1899
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Cooper |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | So Orange |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Moulder |
| Industry | Iron-Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Moulder |
| Township / Ward | So Orange |
| Est. Birth Year | ~1899 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Stuart Cooper | Son | — | 8 | ~1932 |
| Herbert Cooper | Son | — | 14 | ~1926 |
| Harry Cooper | Head | — | 41 | ~1899 |
| Florance Cooper | Spouse | — | 39 | ~1901 |
| Maragret White | Other | — | 45 | ~1895 |
Census Appearances
1910
Hudson, New …
Son, age 12
Hudson, New Jersey · implied b. ~1898 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Hudson, New …
Son, age 21
Hudson, New Jersey · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | salesman |
| Industry | hosiery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Jewish |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Head, age 31
Essex, New Jersey · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 25 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Sales Engineer |
| Industry | Stainless Steel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 14,000 |
| Radio Set | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Head, age 41
Essex-County, New Jersey · implied b. ~1899 — 5 household members
| Surname | Cooper |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | So Orange |
| 1935 Residence (County) | Essex |
| Occupation | Moulder |
| Industry | Iron-Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No |
| 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 Harry Cooper across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father David Cooper (~0.92 confidence) and father Morris Cooper (~0.92 confidence) and mother Rosa Cooper (~0.92 confidence) and mother Rose Cooper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Cooper
b. ~1861
Source father
● Household
· direct · ~0.92
Father
Morris Cooper
b. ~1857
Source father
● Household
· direct · ~0.92
Mother
Rosa Cooper
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Rose Cooper
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Cooper
Head · 1940 · age 41 · b. ~1899 · 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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02340-00068)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Rich | 76 | Father-in-law | Salesman | Poland |
| 2 | Vallie Kolodziejski | 23 | Maid | Maid | Pennsylvania |
| 3 | Jacob Popplet | 42 | Head | Chief Engineer | New Jersey |
| 4 | Pauline Popplet | 39 | Wife | Housewife | New Jersey |
| 5 | Lorraine Popplet | 15 | Daughter | — | New Jersey |
| 6 | June Popplet | 12 | Daughter | — | New Jersey |
| 7 | Virginia Popplet | 5 | Daughter | — | New Jersey |
| 8 | Helen Grabowski | 22 | Maid | Maid | Pennsylvania |
| 9 | Arthur Holmes | 50 | Head | Sale Manager | New Jersey |
| 10 | Grace Holmes | 50 | Wife | Housewife | New Jersey |
| 11 | Charles Wiener | 21 | Nephew | Salesman | New Jersey |
| 12 | Alma Jacobson | 49 | Maid | Housekeeper | Germany |
| 13 | Harry Cooper THIS PERSON | 41 | Head | Moulder | New Jersey |
| 14 | Florance S Cooper | 39 | Wife | Housewife | New Jersey |
| 15 | Herbert Cooper | 14 | Son | — | New Jersey |
| 16 | Stuart Cooper | 8 | Son | — | New Jersey |
| 17 | Maragret White | 45 | Maid | Housekeeper | Eire |
| 18 | Robert Cowen | 41 | Head | Importer | New York |
| 19 | Ida Cowen | 37 | Wife | Housewife | New York |
| 20 | Robert T. Cowen | 11 | Son | — | New York |
| 21 | Diane Cowen | 8 | Daughter | — | New York |
| 22 | Helen Carl | 26 | Maid | Housekeeper | New York |
| 23 | Edwin J Barry | 48 | Head | Broker | New York |
| 24 | Lorraine A Barry | 46 | Wife | Housewife | New York |
| 25 | Edwin Jr Barry | 17 | Son | — | New Jersey |
| 26 | Mary Barry | 16 | Daughter | — | New Jersey |
| 27 | Margie Barry | 14 | Daughter | — | New Jersey |
| 28 | Richard Barry | 12 | Son | — | New Jersey |
| 29 | John Barry | 9 | Son | — | New Jersey |
| 30 | May Eibelshedser | 46 | Maid | Housekeeper | New Jersey |
| 31 | Thomas H. Benton | 44 | Head | Broker | New Jersey |
| 32 | Mary Benton | 44 | Wife | Housewife | Michigan |
| 33 | Elmoran Benton | 14 | Daughter | — | New York |
| 34 | Thomas C Benton | 9 | Son | — | New Jersey |
| 35 | William H Benton | 7 | Son | — | New Jersey |
| 36 | Bertha Helchimsky | 26 | Maid | Housekeeper | Pennsylvania |
| 37 | Madyn Baker | 40 | Head | Doctor | New Jersey |
| 38 | Polly Baker | 37 | Wife | Housewife | New Jersey |
| 39 | Evans Baker | 14 | Son | — | New Jersey |
| 40 | Donald Baker | 12 | Son | — | New Jersey |
Pedigree Summary
Harry
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)