JC
John Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Luzerne-County, Pennsylvania
Our Model Tree links this John Cooper across the 1920, 1930 and 1940 US Censuses in Luzerne-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Matthew & Matthew — first a head (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Luzerne-County, Pennsylvania |
| Surname | Cooper |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Larksville Boro |
| 1935 Residence (County) | Luzerne |
| Additional Details | |
| Occupation | Laborer |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 360 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Larksville Boro |
| Est. Birth Year | ~1907 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Dolores Cooper | Daughter | — | 11 | ~1929 |
| Joan Cooper | Daughter | — | 8 | ~1932 |
| John Cooper | Head | — | 33 | ~1907 |
| Catherine Estok | Other | — | 70 | ~1870 |
| Katherine Cooper | Spouse | — | 33 | ~1907 |
Census Appearances
1920
Luzerne, Pennsylvania
Son, age 15
Luzerne, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Wales |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Luzerne, Pennsylvania
Son, age 25
Luzerne, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Wales |
| Occupation | Labor |
| Industry | Coal Colliery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Luzerne-County, Pennsylvania
Head, age 33
Luzerne-County, Pennsylvania · implied b. ~1907 — 5 household members
| Surname | Cooper |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Larksville Boro |
| 1935 Residence (County) | Luzerne |
| Occupation | Laborer |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 360 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Matthew Cooper (~0.92 confidence) and father Matthew Cooper (~0.92 confidence) and mother Elizabeth Cooper (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Matthew Cooper
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Matthew Cooper
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Cooper
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cooper
Head · 1940 · age 33 · b. ~1907 · Pennsylvania
★ 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 — Luzerne-County, Pennsylvania
Open full size
1940 US Federal Census — Luzerne-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03555-00476)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J. Francis Peterson | 33 | Head | Teacher | Pennsylvania |
| 2 | Eleanor Peterson | 31 | Wife | — | Pennsylvania |
| 3 | Eleanor Ann Peterson | 0 | Daughter | — | Pennsylvania |
| 4 | John Devlin | 61 | Head | Blacksmith | Pennsylvania |
| 5 | Stella Devlin | 61 | Wife | — | Pennsylvania |
| 6 | Margaret Reed | 25 | Daughter | — | Pennsylvania |
| 7 | John Reed | 7 | Grandson | — | Pennsylvania |
| 8 | Edward Reed | 5 | Grandson | — | Pennsylvania |
| 9 | Margaret Reed | 3 | Granddaughter | — | Pennsylvania |
| 10 | James Reed | 2 | Grandson | — | Pennsylvania |
| 11 | John Winslow | 53 | Head | Laborer | Pennsylvania |
| 12 | Agnes Winslow | 49 | Wife | — | Pennsylvania |
| 13 | Marie Winslow | 23 | Daughter | — | Pennsylvania |
| 14 | John Winslow | 21 | Son | Mach. Helper | Pennsylvania |
| 15 | Eleanor Winslow | 20 | Daughter | Housekeeper | Pennsylvania |
| 16 | Edward Winslow | 14 | Son | — | Pennsylvania |
| 17 | Rosalie Winslow | 11 | Daughter | — | Pennsylvania |
| 18 | Nicholas Beretski | 44 | Head | Proprietor | Pennsylvania |
| 19 | Anna Beretski | 42 | Wife | — | Pennsylvania |
| 20 | Nicholas Beretski | 21 | Son | Road Worker | Pennsylvania |
| 21 | Joan Beretski | 7 | Daughter | — | Pennsylvania |
| 22 | Frank Magalski | 47 | Head | Musician | Pennsylvania |
| 23 | Anna Magalski | 38 | Wife | — | Pennsylvania |
| 24 | Bernadine Magalski | 18 | Daughter | Road Worker | Pennsylvania |
| 25 | Viola Magalski | 13 | Daughter | — | Pennsylvania |
| 26 | Nancy Magalski | 8 | Daughter | — | Pennsylvania |
| 27 | Russell Williams | 40 | Head | Time Keeper | Pennsylvania |
| 28 | Mary Williams | 39 | Wife | — | Pennsylvania |
| 29 | Patrick Williams | 11 | Son | — | Pennsylvania |
| 30 | Edward Babcock | 51 | Son | Laborer | Pennsylvania |
| 31 | John Cooper THIS PERSON | 33 | Head | Laborer | Pennsylvania |
| 32 | Katherine Cooper | 33 | Wife | Salesclerk | Pennsylvania |
| 33 | Dolores Cooper | 11 | Daughter | — | Pennsylvania |
| 34 | Joan Cooper | 8 | Daughter | — | Pennsylvania |
| 35 | Catherine Estok | 70 | Mother in law | — | Austria |
| 36 | William Janowski | 50 | Head | Butcher | Poland |
| 37 | Helen Janowski | 48 | Wife | — | Pennsylvania |
| 38 | Hortense Janowski | 26 | Daughter | Sales-Clerk | Pennsylvania |
| 39 | Geraldine Janowski | 23 | Daughter | Sales-Clerk | Pennsylvania |
| 40 | Irving Janowski | 21 | Son | Laborer | Pennsylvania |
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)