JD
James Duncan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Orleans-County, Louisiana
Our Model Tree links this James Duncan across the 1920, 1930 and 1940 US Censuses in Orleans-County, Louisiana (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 9-person household.
Age 50
b. ~1890
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Orleans-County, Louisiana |
| Surname | Duncan |
| Given Name | James H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans |
| 1935 Residence (County) | Orleans Parish |
| Additional Details | |
| Industry | 0 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | New Orleans |
| Est. Birth Year | ~1890 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Anita Duncan | Daughter | — | 16 | ~1924 |
| Sylvian Duncan | Daughter | — | 20 | ~1920 |
| James Duncan | Head | — | 50 | ~1890 |
| Mamie Norman | Other | — | 56 | ~1884 |
| Anita Norman | Other | — | 52 | ~1888 |
| Alexander Norman | Other | — | 47 | ~1893 |
| William Duncan | Son | — | 14 | ~1926 |
| James Duncan | Son | — | 18 | ~1922 |
| Sylvia Duncan | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Orleans, Louisiana
Head, age 30
Orleans, Louisiana · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Laborer |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
Orleans, Louisiana
Head, age 40
Orleans, Louisiana · implied b. ~1890 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Laborer |
| Industry | Street Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 18 |
| Radio Set | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Orleans-County, Louisiana
Head, age 50
Orleans-County, Louisiana · implied b. ~1890 — 9 household members
| Surname | Duncan |
| Given Name | James H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans |
| 1935 Residence (County) | Orleans Parish |
| Industry | 0 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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.
Show:
This person
Anchor record
James Duncan
Head · 1940 · age 50 · b. ~1890 · Louisiana
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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 — Orleans-County, Louisiana
Open full size
1940 US Federal Census — Orleans-County, Louisiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01433-00372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Stephen Fassin | 44 | Head | Truck Driver | Louisiana |
| 42 | Genevieve Fassin | 38 | Wife | — | Louisiana |
| 43 | Conrad Fassin | 10 | Son | — | Louisiana |
| 44 | Daniel P. Fassin | 8 | Son | — | Louisiana |
| 46 | John Heinkamp | 33 | Head | Electrical Engineer | Louisiana |
| 47 | Amy O. Heinkamp | 27 | Wife | — | Africa |
| 48 | John Jr. Heinkamp | 4 | Son | — | Louisiana |
| 49 | Alice Heinkamp | 0 | Daughter | — | Louisiana |
| 50 | Ida E. Steiman | 83 | Head | — | Arkansas |
| 51 | Muriel S. Averitt | 44 | Daughter | Bookkeeper | Louisiana |
| 52 | Jean B. Robertson | 42 | Head | Stenographer | Louisiana |
| 53 | Wilson Robertson | 22 | Son | Chemical Engineer | Louisiana |
| 54 | Josephine Robertson | 20 | Daughter | — | Louisiana |
| 55 | Rene J. Pritchett | 31 | Head | Conductor | Louisiana |
| 56 | Irene Pritchett | 24 | Wife | — | Honduras |
| 57 | James H. Duncan THIS PERSON | 50 | Head | — | Louisiana |
| 58 | Sylvia N. Duncan | 48 | Wife | Secretary | Louisiana |
| 59 | Sylvian Duncan | 20 | Daughter | — | Louisiana |
| 60 | James H. Jr. Duncan | 18 | Son | — | Louisiana |
| 61 | Anita M. Duncan | 16 | Daughter | — | Louisiana |
| 62 | William N. Duncan | 14 | Son | — | Louisiana |
| 63 | Alexander W. Norman | 47 | In-law | Architect | Mississippi |
| 64 | Mamie Norman | 56 | Sister | Librarian | Mississippi |
| 65 | Anita Norman | 52 | Sister | Social Worker | Mississippi |
| 66 | Dalton Dolph | 39 | Head | Draftsman | Louisiana |
| 67 | Agnes Dolph | 37 | Wife | — | Louisiana |
| 68 | Dalton Jr. Dolph | 14 | Son | — | Louisiana |
| 69 | Mervin Dolph | 8 | Son | — | Louisiana |
| 70 | Anna C. Hille | 76 | Head | — | Louisiana |
| 71 | Frederick Eiseman | 34 | Nephew | Mechanic | Louisiana |
| 72 | Clare Eiseman | 33 | Niece | Telegraph Operator | Louisiana |
| 73 | Joseph Hille | 33 | Brother | Clerk | Louisiana |
| 74 | Bouligny Hille | 29 | Brother | Salesman | Louisiana |
| 75 | James Mackelin | 61 | Head | Sheet Metal Worker | Louisiana |
| 76 | Annie Mackelin | 53 | Wife | — | Louisiana |
| 77 | Mary Mackelin | 33 | Daughter | Bookkeeper | Louisiana |
| 78 | Steve Mackelin | 25 | Son | Salesman | Louisiana |
| 79 | Gilbert Mackelin | 19 | Son | — | Louisiana |
| 80 | Ivey Mackelin | 16 | Son | — | Louisiana |
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)