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William Nicholson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Westmoreland-County, Pennsylvania
Our Model Tree links this William Nicholson across the 1910, 1920, 1930 and 1940 US Censuses in Westmoreland-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Levi & Louis — first a son (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Westmoreland-County, Pennsylvania |
| Surname | Nicholson |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | United |
| 1935 Residence (County) | Westmoreland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 16200 |
| Highest Grade | No 8 |
| 1935 Residence | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Marguerite |
| Est. Birth Year | ~1907 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Clarence Nicholson | Son | — | 27 | ~1913 |
| William Nicholson | Son | — | 33 | ~1907 |
| Sophia Nicholson | Spouse | — | 61 | ~1879 |
| Louis Nicholson | Head | — | 63 | ~1877 |
| Homer Nicholson | Son | — | 25 | ~1915 |
Census Appearances
1910
Westmoreland, Pennsylvania
Son, age 3
Westmoreland, Pennsylvania · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | William T. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Westmoreland, Pennsylvania
Son, age 12
Westmoreland, Pennsylvania · implied b. ~1908 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | William S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Westmoreland, Pennsylvania
Son, age 23
Westmoreland, Pennsylvania · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Labor |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Westmoreland-County, Pennsylvania
Son, age 33
Westmoreland-County, Pennsylvania · implied b. ~1907 — 5 household members
| Surname | Nicholson |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | United |
| 1935 Residence (County) | Westmoreland |
| Occupation | Laborer |
| Industry | Steel Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 16200 |
| Highest Grade | No 8 |
| 1935 Residence | Penna |
| 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 William Nicholson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Levi Nicholson (~0.92 confidence) and father Louis Nicholson (~0.92 confidence) and father S Nicholson (~0.92 confidence) and mother Lizzie Nicholson (~0.92 confidence) and mother Lydia Nicholson (~0.92 confidence) and mother Sophia Nicholson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Levi Nicholson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Louis Nicholson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
S Nicholson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Lizzie Nicholson
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Lydia Nicholson
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Sophia Nicholson
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Nicholson
Son · 1940 · age 33 · b. ~1907 · Pennsylvania
★ You are viewing this record
Sibling
Clarence Nicholson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Homer Nicholson
Sibling · 1940 · age 25
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-t0627-03638-00671)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John L. Bigley | 19 | Head | — | Pennsylvania |
| 2 | Raymond E. Bigley | 17 | Brother | — | Pennsylvania |
| 3 | Mary E. Bigley | 65 | Grandmother | — | Pennsylvania |
| 4 | Alfred A. Engell | 41 | Head | Assistant Superintendent | Pennsylvania |
| 5 | Alice H. Engell | 19 | Wife | Leader | Pennsylvania |
| 6 | Norman Engell | 22 | Son | — | Pennsylvania |
| 7 | David Engell | 15 | Son | — | Pennsylvania |
| 8 | Paul Engell | 12 | Son | — | Pennsylvania |
| 9 | Anna G. Engell | 10 | Daughter | — | Pennsylvania |
| 10 | Janet L. Engell | 2 | Daughter | — | Pennsylvania |
| 11 | Nellie M. Bowers | 38 | Housekeeper | Housekeeper | Pennsylvania |
| 12 | Wallace Bowers | 9 | Son | Manager | Pennsylvania |
| 13 | David G. Cowan | 30 | Head | Manager | Pennsylvania |
| 14 | Sara J. Cowan | 28 | Wife | — | Pennsylvania |
| 15 | William L. Cowan | 8 | Son | — | Pennsylvania |
| 16 | Lois J. Cowan | 5 | Daughter | — | Pennsylvania |
| 17 | Nancy J. Cowan | 3 | Daughter | — | Pennsylvania |
| 18 | Sarah A. Cowan | 0 | Daughter | — | Pennsylvania |
| 19 | William E. Haines | 44 | Head | Patrolman | Pennsylvania |
| 20 | Mary E. Haines | 46 | Wife | — | Pennsylvania |
| 21 | Marie J. Haines | 24 | Daughter | Instructor | Pennsylvania |
| 22 | Margaret L. Haines | 22 | Daughter | Clerk | Pennsylvania |
| 23 | Ruth E. Haines | 20 | Daughter | Saleswoman | Pennsylvania |
| 24 | Louis J. Nicholson | 63 | Head | — | Pennsylvania |
| 25 | Sophia Nicholson | 61 | Wife | — | Pennsylvania |
| 26 | William J. Nicholson THIS PERSON | 33 | Son | Laborer | Pennsylvania |
| 27 | Clarence S. Nicholson | 27 | Son | Truck Driver | Pennsylvania |
| 28 | Homer C. Nicholson | 25 | Son | Laborer | Pennsylvania |
| 29 | John A. Forish | 45 | Head | Miner | Pennsylvania |
| 30 | Susan A. Forish | 44 | Wife | — | Pennsylvania |
| 31 | Margaret F. Forish | 19 | Daughter | Maid | Pennsylvania |
| 32 | Barbara M. Forish | 12 | Daughter | — | Pennsylvania |
| 33 | Eugene Forish | 10 | Son | — | Pennsylvania |
| 34 | Theresa Forish | 7 | Daughter | — | Pennsylvania |
| 35 | Paul P. Protenic | 28 | Head | Miner | Pennsylvania |
| 36 | Anna M. Protenic | 24 | Wife | — | Pennsylvania |
| 37 | John L. Lessie | 49 | Head | Truck Driver | Italy |
| 38 | Anita L. Lessie | 73 | Mother | — | Italy |
| 39 | Frank N. Torba | 43 | Head | Laborer | Austria |
| 40 | Mary A. Torba | 38 | Wife | — | Austria |
Pedigree Summary
William + 2 siblings
Gen 1 · 6 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)