JW
James Williamson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Westmoreland-County, Pennsylvania
Our Model Tree links this James Williamson across the 1920, 1930 and 1940 US Censuses in Westmoreland-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & Catherine — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Scotland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Westmoreland-County, Pennsylvania |
| Surname | Williamson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | New Kensington |
| 1935 Residence (County) | Westmoreland |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Operator |
| Industry | Alum. Ind. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Operator |
| Township / Ward | New Kensington |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Matilda Williamson | Daughter | — | 7 | ~1933 |
| Lillian Williamson | Daughter | — | 15 | ~1925 |
| Thomas Williamson | Head | — | 49 | ~1891 |
| Thomas Williamson | Son | — | 11 | ~1929 |
| James Williamson | Son | — | 23 | ~1917 |
| Mary Williamson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Delaware, Pennsylvania
Son, age 1
Delaware, Pennsylvania · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Scotland |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Armstrong, Pennsylvania
Son, age 12
Armstrong, Pennsylvania · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1920 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Westmoreland-County, Pennsylvania
Son, age 23
Westmoreland-County, Pennsylvania · implied b. ~1917 — 6 household members
| Surname | Williamson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | New Kensington |
| 1935 Residence (County) | Westmoreland |
| Naturalization Status | Naturalized |
| Occupation | Operator |
| Industry | Alum. Ind. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | H-4 |
| 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 Williamson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father William Williamson (~0.92 confidence) and mother Catherine Williamson (~0.92 confidence) and mother Mary Williamson (~0.92 confidence) and father Thomas Williamson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Williamson
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Catherine Williamson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Williamson
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Thomas Williamson
b. ~1892
Source father
● Household
· direct · ~0.92
This person
Anchor record
James Williamson
Son · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Lillian Williamson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Williamson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Matilda Williamson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Westmoreland-County, Pennsylvania
Open full size
1940 US Federal Census — Westmoreland-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03635-00455)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold Glenburg | 33 | Head | Boiler Operator | Penna |
| 42 | Helen Glenburg | 29 | Wife | — | Penna |
| 43 | Daniel Glenburg | 3 | Son | — | Penna |
| 44 | Thomas Williamson | 49 | Head | Watchman | Scotland |
| 45 | Mary Williamson | 48 | Wife | — | Scotland |
| 46 | James Williamson THIS PERSON | 23 | Son | Operator | Scotland |
| 47 | Lillian Williamson | 15 | Daughter | — | Penna |
| 48 | Thomas Williamson | 11 | Son | — | Penna |
| 49 | Matilda Williamson | 7 | Daughter | — | Penna |
| 50 | Charles J. Davis | 50 | Head | Furnace Man | Penna |
| 51 | Martha Davis | 48 | Wife | — | Penna |
| 52 | Dorothy Davis | 26 | Daughter | Waitress | Penna |
| 53 | Martha Davis | 23 | Daughter | — | Penna |
| 54 | Margaret Ramsey | 77 | Mother-in-law | — | Penna |
| 55 | Nicola Livorio | 50 | Head | Polisher | Italy |
| 56 | Theresa Livorio | 45 | Wife | — | Italy |
| 57 | Anna Livorio | 25 | Daughter | — | Italy |
| 58 | Vincent Livorio | 23 | Son | Clerk | Italy |
| 59 | Anthony Livorio | 21 | Son | Laborer | Italy |
| 60 | Robert Livorio | 17 | Son | — | Penna |
| 61 | William Riley | 47 | Head | — | Penna |
| 62 | Mary Riley | 81 | Mother | — | England |
| 63 | Charles Becko | 27 | Head | Laborer | Penna |
| 64 | Isabelle Becko | 22 | Wife | — | Penna |
| 65 | Charles Becko | 4 | Son | — | Penna |
| 66 | Julian Conce | 46 | Head | Laborer | Penna |
| 67 | William Watt | 56 | Head | Machinist | Penna |
| 68 | Cora Watt | 52 | Wife | — | Penna |
| 69 | Roy Watt | 21 | Son | Tester | Penna |
| 70 | William C. Watt | 9 | Son | — | Penna |
| 71 | Ralph Cianflone | 69 | Head | — | Italy |
| 72 | Tommasina Cianflone | 66 | Wife | — | Italy |
| 73 | Frank Cianflone | 30 | Son | — | Italy |
| 74 | Gioconda Cianflone | 20 | Daughter-in-law | Shoemaker | Italy |
| 75 | William Ross | 61 | Head | Machinist | Penna |
| 76 | Maude Ross | 57 | Wife | — | Penna |
| 77 | William Ross | 19 | Son | — | Penna |
| 78 | Lawrence Clark | 41 | Head | Laborer | Penna |
| 79 | Edith Clark | 31 | Wife | — | Penna |
| 80 | Robert Clark | 12 | Step-son | — | Penna |
Pedigree Summary
James + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)