JC
John Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this John Cook across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents George & Clara — first a head (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Male
Head
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Liquor House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | No 3 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Truck Driver |
| Township / Ward | Newark |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| Elizabeth Cook | Daughter | — | 3 | ~1937 |
| John Cook | Head | — | 37 | ~1903 |
| Catherine Cook | Other | — | 21 | ~1919 |
| Gladis Cook | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Essex, New …
Son, age 19
Essex, New Jersey · implied b. ~1901 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Helper |
| Industry | Grocery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Essex, New …
Son, age 28
Essex, New Jersey · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 24 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Truck driver |
| Industry | Bottle works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Essex-County, New …
Head, age 37
Essex-County, New Jersey · implied b. ~1903 — 4 household members
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Occupation | Truck Driver |
| Industry | Liquor House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | No 3 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Cook (~0.92 confidence) and mother Clara Cook (~0.92 confidence) and mother Clara Cook (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Cook
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Clara Cook
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Clara Cook
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cook
Head · 1940 · age 37 · b. ~1903 · 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-t0627-02413-00214)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Minnie Piasecki | 56 | Housekeeper | Housekeeper | Poland |
| 42 | Ida Levine | 54 | Head | — | Poland |
| 43 | Edna Levine | 21 | Daughter | Clerical | New Jersey |
| 44 | Jacob Krell | 45 | Head | Jeweler | Russia |
| 45 | Sarah Krell | 42 | Wife | — | Russia |
| 46 | Seymour Krell | 25 | Son | Clerk | New Jersey |
| 47 | Milton Mone | 33 | Lodger | Bar Tender | New Jersey |
| 48 | Harry Doctor | 52 | Head | Hat Renewer | Russia |
| 49 | Fanny Doctor | 42 | Wife | — | Poland |
| 50 | Sarah Doctor | 19 | Daughter | Box Keeper | New Jersey |
| 51 | Martin Doctor | 15 | Son | — | New Jersey |
| 52 | Harriet Doctor | 10 | Daughter | — | New Jersey |
| 53 | John Cook THIS PERSON | 37 | Head | Truck Driver | Alabama |
| 54 | Gladis Cook | 26 | Wife | Housework | Georgia |
| 55 | Elizabeth Cook | 3 | Daughter | — | New Jersey |
| 56 | Catherine Cook | 21 | Sister-in-law | — | New Jersey |
| 57 | Haiser Christmas | 25 | Head | Laborer | Florida |
| 58 | Netty Christmas | 31 | Wife | Laundress | Florida |
| 59 | William Gainous | 28 | Lodger | Laborer | Florida |
| 60 | Frances Taylor | 42 | Head | Relief | Virginia |
| 61 | Cornelia Phillips | 45 | Head | Relief | Virginia |
| 62 | Magnolia Griggs | 26 | Daughter | — | Virginia |
| 63 | John Jr. Griggs | 5 | Grandson | — | New Jersey |
| 64 | Martha Dixon | 23 | Lodger | Relief | Georgia |
| 65 | Perry Williams | 55 | Head | W.P.A. Worker | Georgia |
| 66 | Victoria Williams | 55 | Wife | — | Georgia |
| 67 | William Hulan | 22 | Lodger | Laborer | North Carolina |
| 68 | Melkom Chandler | 45 | Head | Chipper | Georgia |
| 69 | Hulu Chandler | 34 | Wife | Presser | Georgia |
| 70 | Edward Middleton | 23 | Head | Truck Driver | New Jersey |
| 71 | Arela Middleton | 21 | Wife | Housework | Pennsylvania |
| 72 | Anna Middleton | 57 | Mother | Housework | Georgia |
| 73 | Raymond Middleton | 15 | Brother | — | New Jersey |
| 74 | James Moore | 28 | Head | W.P.A. Worker | North Carolina |
| 75 | Agnes Moore | 24 | Wife | Presser | Georgia |
| 76 | Abraham Pertunowitz | 69 | Head | Builder | Russia |
| 77 | Rose Pertunowitz | 32 | Daughter | Bookkeeper | Russia |
| 78 | Sarah Pertunowitz | 29 | Daughter | Bookkeeper | Russia |
| 79 | Charlie Pertunowitz | 23 | Son | Carpenter | New Jersey |
| 80 | Bessie Davis | 40 | Head | Laundress | Georgia |
Pedigree Summary
John
Gen 1 · 3 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)