JD
James Duncan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this James Duncan across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 6-person household.
Age 56
b. ~1884
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Duncan |
| Given Name | James H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Kearny |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Office Manager |
| Industry | Bridge Builders |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2080 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Office Manager |
| Township / Ward | Kearny |
| Est. Birth Year | ~1884 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mary Duncan | Daughter | — | 23 | ~1917 |
| Margaret Duncan | Daughter | — | 20 | ~1920 |
| Katherine Duncan | Daughter | — | 16 | ~1924 |
| James Duncan | Head | — | 56 | ~1884 |
| John Duncan | Son | — | 28 | ~1912 |
| Katherine Duncan | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Hudson, New …
Head, age 35
Hudson, New Jersey · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1910 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Bookkeeper |
| Industry | Gas & Electric |
| 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
Hudson, New …
Head, age 46
Hudson, New Jersey · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 21 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Bookkeeper |
| Industry | Building Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 7500 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Hudson-County, New …
Head, age 56
Hudson-County, New Jersey · implied b. ~1884 — 6 household members
| Surname | Duncan |
| Given Name | James H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Kearny |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Occupation | Office Manager |
| Industry | Bridge Builders |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2080 |
| 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 Duncan 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 Duncan
Head · 1940 · age 56 · b. ~1884 · 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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02350-00963)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Doris Peterson | 17 | Daughter | — | New Jersey |
| 42 | Lorraine Peterson | 12 | Daughter | — | New Jersey |
| 43 | Charles Peterson | 72 | Father | — | Sweden |
| 44 | Jennie Peterson | 69 | Mother | — | Sweden |
| 45 | Irene Peterson | 23 | Sister | — | New York |
| 46 | Mary Allan | 53 | Head | Secretary | Scotland |
| 47 | Elsie Allan | 31 | Daughter | — | New Jersey |
| 48 | Robert Park | 9 | Lodger | — | New Jersey |
| 49 | Alice Shepherd | 68 | Lodger | — | England |
| 50 | Thomas Doyle | 35 | Lodger | Gardener | New Jersey |
| 51 | Ulrich Moeller | 67 | Head | Painter | New York |
| 52 | Catherine Moeller | 70 | Wife | — | Germany |
| 53 | Barbara Kenney | 7 | Daughter | — | New Jersey |
| 54 | Joseph Coggins | 41 | Head | Accountant | New Jersey |
| 55 | Mary Coggins | 36 | Wife | — | England |
| 56 | Mary Coggins | 17 | Daughter | — | New Jersey |
| 57 | Delores Coggins | 15 | Daughter | — | New Jersey |
| 58 | Therese Coggins | 13 | Daughter | — | New Jersey |
| 59 | Joseph Coggins | 11 | Son | — | New Jersey |
| 60 | John C. Moore | 45 | Head | Clergyman | New Jersey |
| 61 | Marion Moore | 41 | Sister | Librarian | New Jersey |
| 62 | Edwin Mcloughlan | 53 | Head | Service Man | England |
| 63 | Ethel Mcloughlan | 45 | Wife | — | England |
| 64 | Arthur Mcloughlan | 24 | Son | Draftsman | Rhode Island |
| 65 | Irene Mcloughlan | 22 | Daughter | Order Clerk | Rhode Island |
| 66 | George Schroeder | 35 | Head | Fireman | New Jersey |
| 67 | Adele Schroeder | 25 | Wife | — | New Jersey |
| 68 | George A. Schroeder | 5 | Son | — | New Jersey |
| 69 | George Shauger | 67 | Head | Mason | New Jersey |
| 70 | Florence Shauger | 57 | Wife | — | England |
| 71 | Wallace Shauger | 26 | Son | Policy Clerk | New Jersey |
| 72 | Eleanor Rylance | 51 | Sister in law | Salesgirl | England |
| 73 | James H. Duncan THIS PERSON | 56 | Head | Office Manager | Scotland |
| 74 | Katherine Duncan | 58 | Wife | — | Scotland |
| 75 | John C. Duncan | 28 | Son | Metal Finisher | Scotland |
| 76 | Mary C. Duncan | 23 | Daughter | Typist | New Jersey |
| 77 | Margaret Duncan | 20 | Daughter | File Clerk | New Jersey |
| 78 | Katherine Duncan | 16 | Daughter | — | New Jersey |
| 79 | James W. Timlin | 59 | Head | Mechanical Engineer | Penn |
| 80 | Lucille Timlin | 21 | Daughter | — | 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)