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William Williamson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Williamson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 5-person household.
Age 63
b. ~1877
Male
Head
Born: Pennsylvania
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Williamson |
| Given Name | William B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Flag Man |
| Industry | Road construction |
| Class of Worker | GW |
| Income (1939) | 988 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Flag Man |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1877 |
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 |
|---|---|---|---|---|
| Murvell Mcchesney | Daughter | — | 39 | ~1901 |
| William Williamson | Head | — | 63 | ~1877 |
| Doris Mcchesney | Other | — | 18 | ~1922 |
| George Mcchesney | Other | — | 42 | ~1898 |
| William Williamson | Son | — | 31 | ~1909 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 41
Allegheny, Pennsylvania · implied b. ~1879 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Laborer |
| Industry | Chain Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 53
Allegheny, Pennsylvania · implied b. ~1877 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 22 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Laborer |
| Industry | Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 63
Allegheny-County, Pennsylvania · implied b. ~1877 — 5 household members
| Surname | Williamson |
| Given Name | William B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Occupation | Flag Man |
| Industry | Road construction |
| Class of Worker | GW |
| Income (1939) | 988 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| 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 Williamson 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 Williamson
Head · 1940 · age 63 · b. ~1877 · 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-t0627-03675-00520)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Regina B. Leschiditzky | 50 | Wife | H | Roumania |
| 2 | Elizabeth C. Leschiditzky | 20 | Daughter | New Worker | Pennsylvania |
| 3 | Leo Wolff | 54 | Head | Bricklayer | Pennsylvania |
| 4 | Clara Wolff | 56 | Wife | H | West Virginia |
| 5 | Leo W. Wolff | 16 | Son | S | Pennsylvania |
| 6 | William B. Williamson THIS PERSON | 63 | Head | Flag Man | Pennsylvania |
| 7 | William L. Williamson | 31 | Son | Driver'S Helper | Pennsylvania |
| 8 | George Mcchesney | 42 | Son-in-law | Truck Driver | Pennsylvania |
| 9 | Murvell Mcchesney | 39 | Daughter | H | Pennsylvania |
| 10 | Doris Mcchesney | 18 | Granddaughter | Stenographer | Pennsylvania |
| 11 | Joseph Welchior | 36 | Head | Craneman | Pennsylvania |
| 12 | Evelyn Welchior | 16 | Wife | S | Pennsylvania |
| 13 | Joseph A. Noury | 56 | Head | Brakeman | France |
| 14 | Robert W. Hanahan | 27 | Head | Receiving Clerk | Pennsylvania |
| 15 | Anne M. Hanahan | 21 | Wife | Beautician | Pennsylvania |
| 16 | Cecelia Becker | 45 | Head | Mangler | Pennsylvania |
| 17 | Clara Becker | 47 | Sister | Checker | Pennsylvania |
| 18 | Mildred Becker | 23 | Niece | Wrapper | Pennsylvania |
| 19 | George Urquhart | 55 | Head | Salesman | Pennsylvania |
| 20 | Cessalie Urquhart | 57 | Wife | H | Scotland |
| 21 | George T. Urquhart | 25 | Son | Secretary | Pennsylvania |
| 22 | Frederick Jones | 76 | Head | Checker | Pennsylvania |
| 23 | Margaret Jones | 32 | Wife | H | Pennsylvania |
| 24 | Frederick Jr. Jones | 4 | Son | — | Pennsylvania |
| 25 | Susanna Drescher | 61 | Head | H | Czecho-Slovakia |
| 26 | William Drescher | 28 | Son | Machine Apprentice | Ohio |
| 27 | Edward Drescher | 23 | Son | Office Clerk | Pennsylvania |
| 28 | Frederick Schlemmer | 59 | Head | Bus Line Operator | Germany |
| 29 | Minnie Schlemmer | 55 | Wife | H | Germany |
| 30 | Walter Schlemmer | 30 | Son | Office Clerk | Pennsylvania |
| 31 | Robert Schlemmer | 12 | Son | S | Pennsylvania |
| 32 | Henry K. Finke | 55 | Head | Millwright | Pennsylvania |
| 33 | Martha A. Finke | 53 | Wife | H | Germany |
| 34 | Margaret Finke | 25 | Daughter | Office Clerk | Pennsylvania |
| 35 | James Doran | 55 | Head | Structural Worker | Pennsylvania |
| 36 | Jean Doran | 55 | Wife | H | Scotland |
| 37 | Marcellene Guthrie | 34 | Daughter | H | Pennsylvania |
| 38 | Joan Guthrie | 5 | Granddaughter | — | Pennsylvania |
| 39 | Stanford Guthrie | 1 | Grandson | — | Pennsylvania |
| 40 | John Robb | 56 | Head | Laborer | Czecho-Slovakia |
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)