JC
James Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this James Cooper across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 5-person household.
Age 58
b. ~1882
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Cooper |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Stone-Cutter |
| Industry | Pottery Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Stone-Cutter |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1882 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Catherine Cooper | Daughter | — | 21 | ~1919 |
| Agnes Cooper | Daughter | — | 15 | ~1925 |
| James Cooper | Head | — | 58 | ~1882 |
| William Cooper | Son | — | 28 | ~1912 |
| Agnes Cooper | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Mercer, New …
Head, age 38
Mercer, New Jersey · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1903 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Stonecutter |
| Industry | Watchman |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Mercer, New …
Head, age 48
Mercer, New Jersey · implied b. ~1882 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Age at First Marriage | 28 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Stone Cutter |
| Industry | Potteries |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Mercer-County, New …
Head, age 58
Mercer-County, New Jersey · implied b. ~1882 — 5 household members
| Surname | Cooper |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Naturalization Status | Alien |
| Occupation | Stone-Cutter |
| Industry | Pottery Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 James Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Cooper
Head · 1940 · age 58 · b. ~1882 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02356-00737)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sarah Lord | 43 | Wife | — | New Jersey |
| 2 | Richard Lord | 22 | Son | Molder | New Jersey |
| 3 | Eva Lord | 20 | Daughter | — | New Jersey |
| 4 | Arthur Lord | 14 | Son | — | New Jersey |
| 5 | Frank Lord | 7 | Son | — | New Jersey |
| 6 | Francis Mcquillan | 35 | Head | Mail-Carrier | New Jersey |
| 7 | Margaret Mcquillan | 31 | Wife | — | New York |
| 8 | Richard Mcquillan | 8 | Son | — | New Jersey |
| 9 | Godfrey S. Elliott | 32 | Head | Research Editor | New Jersey |
| 10 | Eveline Elliott | 32 | Wife | — | England |
| 11 | Godfrey D. Elliott | 11 | Son | — | New Jersey |
| 12 | Donald S. Elliott | 9 | Son | — | New Jersey |
| 13 | James Cooper THIS PERSON | 58 | Head | Stone-Cutter | Scotland |
| 14 | Agnes Cooper | 52 | Wife | — | Scotland |
| 15 | William Cooper | 28 | Son | Job-Setter | New Jersey |
| 16 | Catherine Cooper | 21 | Daughter | Press-Operator | New Jersey |
| 17 | Agnes Cooper | 15 | Daughter | — | New Jersey |
| 18 | Stephen M. Jaggers | 37 | Head | Grocery Salesman | New Jersey |
| 19 | Evelyn P. Jaggers | 37 | Wife | — | Pennsylvania |
| 20 | Grace A. Coleman | 65 | Mother-in-law | — | New Jersey |
| 21 | Alfred Lawrence | 42 | Head | — | Pennsylvania |
| 22 | Matilda Lawrence | 40 | Sister | Rubber Worker | Pennsylvania |
| 23 | John Merryweather | 39 | Head | Officer | New Jersey |
| 24 | Evelyn Merryweather | 14 | Daughter | — | New Jersey |
| 25 | John Jr. Merryweather | 16 | Son | — | Pennsylvania |
| 26 | Ann Merryweather | 10 | Daughter | — | Pennsylvania |
| 27 | Albert Dearden | 77 | Head | Secretary | England |
| 28 | Anna C. Dearden | 75 | Wife | — | New York |
| 29 | E. Gilbert Heupel | 31 | Head | Clerk | New Jersey |
| 30 | Marie Heupel | 33 | Wife | — | New Jersey |
| 31 | Marie D. Heupel | 9 | Daughter | — | New Jersey |
| 32 | Eileen A. Heupel | 8 | Daughter | — | New Jersey |
| 33 | E. Gilbert Jr. Heupel | 5 | Son | — | New Jersey |
| 34 | Joseph D. Heupel | 3 | Son | — | New Jersey |
| 35 | Alma M. Heupel | 2 | Daughter | — | New Jersey |
| 36 | John H. Burmeister | 76 | Head | — | Denmark |
| 37 | Jacobina Burmeister | 72 | Wife | — | Denmark |
| 38 | George J. Woodington | 70 | Head | — | Pennsylvania |
| 39 | Alice Woodington | 68 | Wife | — | England |
| 40 | George R. Woodington | 30 | Son | Inspector | 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)