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James Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Erie-County, New York
Our Model Tree links this James Cooper across the 1920, 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, New York |
| Surname | Cooper |
| Given Name | James R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Plasterer |
| Industry | Contractor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 346 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Plasterer |
| Township / Ward | Buffalo City |
| Est. Birth Year | ~1887 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Cooper | Head | — | 53 | ~1887 |
| Cyril Cooper | Son | — | 23 | ~1917 |
| Barbra Cooper | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Erie, New …
Head, age 32
Erie, New York · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1910 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Plasterer |
| Industry | House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | 1915 |
| Birthplace (normalized) | scotland |
1930
Erie, New …
Head, age 45
Erie, New York · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | James R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 27 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Plasterer |
| Industry | Buildings |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Erie-County, New …
Head, age 53
Erie-County, New York · implied b. ~1887 — 3 household members
| Surname | Cooper |
| Given Name | James R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Naturalization Status | Naturalized |
| Occupation | Plasterer |
| Industry | Contractor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 346 |
| Highest Grade | 8 |
| 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 53 · b. ~1887 · New York
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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 — Erie-County, New York
Open full size
1940 US Federal Census — Erie-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02838-00170)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Daniel Lovell | 23 | Son | New Worker | New York |
| 42 | Ray Huston | 60 | Head | Carpenter | Pennsylvania |
| 43 | Effie Huston | 58 | Wife | — | Pennsylvania |
| 44 | Louise Huston | 20 | Daughter | New Worker | Pennsylvania |
| 45 | Robert Huston | 12 | Son | — | New York |
| 46 | Jack A. Huston | 12 | Son | — | New York |
| 47 | James R. Cooper THIS PERSON | 53 | Head | Plasterer | Scotland |
| 48 | Barbra Cooper | 53 | Wife | — | Scotland |
| 49 | Cyril Cooper | 23 | Son | Apprentice Plasterer | New York |
| 50 | Orvall Holzerland | 31 | Head | Assembler Mechanic | New York |
| 51 | Geraldine Holzerland | 19 | Wife | — | Michigan |
| 52 | Julius Roese | 21 | Brother-in-law | Bookkeeper | Michigan |
| 53 | Millie H. Streeter | 70 | Head | — | New York |
| 54 | Mary Q. Bucher | 72 | Head | — | Connecticut |
| 55 | Elizabeth Bucher | 35 | Daughter | Social Service | New York |
| 56 | Margaret Bucher | 27 | Daughter | Laboratory Technician | New York |
| 57 | Mary Ryan | 41 | Daughter | Stenographer | Connecticut |
| 58 | Thomas Ryan | 5 | Grandson | — | Illinois |
| 59 | Michael Ryan | 4 | Grandson | — | Illinois |
| 60 | August J. Mertzdorf | 50 | Head | Heating Engineer | New York |
| 61 | Minnie E. Mertzdorf | 55 | Wife | — | New York |
| 62 | Roberta Mertzdorf | 23 | Daughter | Stenographer | New York |
| 63 | Louisa Barth | 53 | Sister-in-law | — | New York |
| 64 | Lawrence Blanchard | 50 | Head | Salesman | Canada-English |
| 65 | Nina Blanchard | 46 | Wife | — | New York |
| 66 | Doris Blanchard | 14 | Daughter | — | New York |
| 67 | Thomas B. Blanchard | 33 | Son | — | Canada-English |
| 68 | Genevieve Blanchard | 26 | Daughter-in-law | Servant | New York |
| 69 | Brunhart Bublig | 38 | Head | Basket Trimmer | Germany |
| 70 | Ilena Bublig | 31 | Wife | — | Germany |
| 71 | Ernest H. Duncan | 66 | Head | — | New Jersey |
| 72 | Sula E. Duncan | 62 | Wife | — | Pennsylvania |
| 73 | Mary Gray | 77 | Head | — | New York |
| 74 | Pauline Gray | 58 | Daughter | Housekeeper | Massachusetts |
| 75 | Le Ray Melberg | 33 | Head | Tester | New York |
| 76 | Ethel M. Melberg | 28 | Wife | — | New York |
| 77 | Le Ray Jr. Melberg | 5 | Son | — | New York |
| 78 | Barbara Melberg | 4 | Daughter | — | New York |
| 79 | Judith Melberg | 2 | Daughter | — | New York |
| 80 | Joan Melberg | 2 | Daughter | — | New York |
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)