JD
James Duncan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Washington, Pennsylvania
Our Model Tree links this James Duncan across the 1910, 1920 and 1930 US Censuses in Washington, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 5-person household.
Age 55
b. ~1875
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Washington, Pennsylvania |
| Surname | Duncan |
| Given Name | James M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 24 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Manufacturer |
| Industry | Glass |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Manufacturer |
| Township / Ward | East Washington Borough |
| Est. Birth Year | ~1875 |
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 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Betty Duncan | Daughter | — | 16 | ~1914 |
| James Duncan | Head | — | 55 | ~1875 |
| Mary Duncan | Other | — | 48 | ~1882 |
| Martha Smiley | Other | — | 52 | ~1878 |
| James Duncan | Son | — | 20 | ~1910 |
Census Appearances
1910
Washington, Pennsylvania
Head, age 36
Washington, Pennsylvania · implied b. ~1874 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | James E. Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 10 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Owner |
| Industry | Glass plant |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Washington, Pennsylvania
Head, age 46
Washington, Pennsylvania · implied b. ~1874 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | James E. Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Manufacturer |
| Industry | Glass |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Washington, Pennsylvania
Head, age 55
Washington, Pennsylvania · implied b. ~1875 — 5 household members
| Surname | Duncan |
| Given Name | James M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 24 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Manufacturer |
| Industry | Glass |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15,000 |
| Radio Set | R |
| Veteran | No |
| 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 James Duncan across 3 US Census years (1910, 1920 and 1930) in Washington, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
James Duncan
Head · 1930 · age 55 · b. ~1875 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Washington, Pennsylvania
Open full size
1930 US Federal Census — Washington, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2162:0536)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Jesse Payton | 61 | Head | — | West Virginia |
| 52 | Margaret H Payton | 38 | Wife-H | — | New Jersey |
| 53 | Flora Payton | 10 | Daughter | — | Pennsylvania |
| 54 | Sara Payton | 9 | Daughter | — | New Jersey |
| 55 | Robert H Meloy | 61 | Head | Lawyer | Pennsylvania |
| 56 | Alice Meloy | 45 | Wife-H | — | Pennsylvania |
| 57 | Jane Meloy | 24 | Daughter | Solicitor | Pennsylvania |
| 58 | Sara Meloy | 18 | Daughter | — | Pennsylvania |
| 59 | Isabel Meloy | 13 | Daughter | — | Pennsylvania |
| 60 | Martha Meloy | 12 | Daughter | — | Pennsylvania |
| 61 | Robert Meloy | 11 | Son | — | Pennsylvania |
| 62 | Charles Meloy | 9 | Son | — | Pennsylvania |
| 63 | John Meloy | 6 | Son | — | Pennsylvania |
| 64 | Albert S Cooper | 57 | Head | Hotel Man | Pennsylvania |
| 65 | Eva Cooper | 50 | Wife-H | — | Pennsylvania |
| 66 | Ellen Essie Cooper | 22 | Daughter | — | Pennsylvania |
| 67 | Edward Grayson | 44 | Head | President | England |
| 68 | Thomas Slater | 44 | Servant | Servant | New York |
| 69 | Martha E Slater | 40 | Servant | Servant | England |
| 70 | Loretta M Slater | 8 | Daughter | — | New York |
| 71 | John Knox | 50 | Head | Tailor | Pennsylvania |
| 72 | Emma S Knox | 47 | Wife-H | — | Pennsylvania |
| 73 | Dorothy M Flack | 21 | Niece | — | Pennsylvania |
| 74 | Edward Jr Mcnees | 31 | Head | Salesman | Pennsylvania |
| 75 | Bernice Mcnees | 26 | Wife-H | — | Pennsylvania |
| 76 | Jeanette Camp | 20 | Maid | Servant | West Virginia |
| 77 | Bernard H Vanslyke | 64 | Head | Salesman | Pennsylvania |
| 78 | Anna Bell Vanslyke | 64 | Wife-H | — | Pennsylvania |
| 79 | Louis F Birchner | 54 | Head | Doctor | Pennsylvania |
| 80 | Mary M Birchner | 24 | Daughter-H | Teacher | Pennsylvania |
| 81 | Albert J Birchner | 22 | Son | Collector | Pennsylvania |
| 82 | Louis F Jr Birchner | 28 | Son | Salesman | Pennsylvania |
| 83 | Robert Stewart | 77 | Head | — | Pennsylvania |
| 84 | Ella Stewart | 50 | Housekeeper | — | Pennsylvania |
| 85 | Sara | 51 | Lodger | Saleslady | Pennsylvania |
| 86 | William Baird | 62 | Head | President | Pennsylvania |
| 87 | Helen Baird | 35 | Wife-H | — | New York |
| 88 | Laura Lisk | 25 | Maid | Servant | North Carolina |
| 89 | James T Mitchell | 76 | Head | Broker | Missouri |
| 90 | Baird Mitchell | 42 | Son | Broker | Pennsylvania |
| 91 | John Sytzema | 52 | Head | Salesman | Michigan |
| 92 | Susan Sytzema | 40 | Daughter | Bookkeeper | Pennsylvania |
| 93 | Elizabeth Meyers | 47 | Daughter-H | Housekeeper | Pennsylvania |
| 94 | Isaac Pollock | 68 | Head | Carpenter | Pennsylvania |
| 95 | Mary E Pollock | 62 | Wife-H | — | Pennsylvania |
| 96 | James M Duncan THIS PERSON | 55 | Head | Manufacturer | Pennsylvania |
| 97 | Mary S Duncan | 48 | Wife-H | — | Pennsylvania |
| 98 | James E 3Rd Duncan | 20 | Son | — | Pennsylvania |
| 99 | Betty Ann Duncan | 16 | Daughter | — | Pennsylvania |
| 100 | Martha Smiley | 52 | Sister-in-law | Bookkeeper | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)