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William Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Nicholson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 4-person household.
Age 70
b. ~1870
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Nicholson |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Castle Shannon Boro |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Castle Shannon Boro |
| Est. Birth Year | ~1870 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Dindinger | Daughter | — | 54 | ~1886 |
| William Nicholson | Head | — | 70 | ~1870 |
| Martha Nicholson | Spouse | — | 71 | ~1869 |
| Norman Dindinger | Other | — | 55 | ~1885 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 52
Allegheny, Pennsylvania · implied b. ~1868 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Allegheny, Pennsylvania
Head, age 62
Allegheny, Pennsylvania · implied b. ~1868
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Nicholson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 19 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Indiana |
| Occupation | Foreman |
| Industry | Railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Allegheny-County, Pennsylvania
Head, age 70
Allegheny-County, Pennsylvania · implied b. ~1870 — 4 household members
| Surname | Nicholson |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Castle Shannon Boro |
| 1935 Residence (County) | Allegheny |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Nicholson
Head · 1940 · age 70 · b. ~1870 · Pennsylvania
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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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03400-00088)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Augustus Henge | 25 | Head | Laborer | Pennsylvania |
| 42 | Agnes Henge | 24 | Daughter | Counter Clerk | Pennsylvania |
| 43 | Anna Renkins | 62 | Head | — | Lithuania |
| 44 | Anthony Renkins | 24 | Son | Timekeeper | Pennsylvania |
| 45 | Edward Renkins | 22 | Son | — | Pennsylvania |
| 46 | Louis Renkins | 19 | Son | Sales Clerk | Pennsylvania |
| 47 | Elsie Renkins | 18 | Daughter | New Worker | Pennsylvania |
| 48 | George J. Vietmeier | 34 | Head | Building Laborer | Pennsylvania |
| 49 | Muriel E. Vietmeier | 28 | Wife | — | Pennsylvania |
| 50 | Muriel J. Vietmeier | 10 | Daughter | — | Pennsylvania |
| 51 | George J. Jr. Vietmeier | 9 | Son | — | Pennsylvania |
| 52 | Robert E. Vietmeier | 4 | Son | — | Pennsylvania |
| 53 | John Mccartney | 63 | Head | Miner | Ohio |
| 54 | Alice C. Mccartney | 53 | Wife | — | Pennsylvania |
| 55 | Charles Mccartney | 24 | Son | Tree Surgeon | Pennsylvania |
| 56 | John T. Mccartney | 22 | Son | Laborer | Pennsylvania |
| 57 | Emma T. Mccartney | 19 | Daughter | Houseworker | Pennsylvania |
| 58 | Bernadine Mccartney | 18 | Daughter | Houseworker | Pennsylvania |
| 59 | Patricia Mccartney | 16 | Daughter | — | Pennsylvania |
| 60 | George Mccartney | 15 | Son | — | Pennsylvania |
| 61 | Marie R. Mccartney | 11 | Daughter | — | Pennsylvania |
| 62 | John Mancuso | 34 | Head | Laborer | Pennsylvania |
| 63 | Agnes J. Mancuso | 25 | Wife | — | Pennsylvania |
| 64 | Charles E. Mancuso | 5 | Son | — | Pennsylvania |
| 65 | John J. Mancuso | 2 | Son | — | Pennsylvania |
| 66 | William H. Nicholson THIS PERSON | 70 | Head | — | Indiana |
| 67 | Martha E. Nicholson | 71 | Wife | — | Indiana |
| 68 | Norman Dindinger | 55 | Son-in-law | Laborer | Pennsylvania |
| 69 | Mary A. Dindinger | 54 | Daughter | — | Indiana |
| 70 | Charles A. Weber | 70 | Head | Painter | Pennsylvania |
| 71 | Marguerite M. Weber | 69 | Wife | — | Germany |
| 72 | Mary E. Strode | 17 | Lodger | — | Pennsylvania |
| 73 | Anna Huxley | 15 | Lodger | — | Pennsylvania |
| 74 | Elsie Huxley | 13 | Lodger | — | Pennsylvania |
| 75 | John J. Pardine | 33 | Head | Waiter | Pennsylvania |
| 76 | Verna A. Pardine | 30 | Wife | — | Pennsylvania |
| 77 | Verna J. Pardine | 7 | Daughter | — | Pennsylvania |
| 78 | Jean A. Pardine | 5 | Daughter | — | Pennsylvania |
| 79 | Ronald J. Pardine | 2 | Son | — | Pennsylvania |
| 80 | Constantine Pontone | 71 | Head | Baker | Pennsylvania |
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)