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Ralph Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Ralph Williams across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Williams |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | C |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1929 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Williams | Daughter | — | 10 | ~1930 |
| Ethel Williams | Daughter | — | 7 | ~1933 |
| John Williams | Head | — | 45 | ~1895 |
| Charles Williams | Son | — | 14 | ~1926 |
| Owens Williams | Son | — | 16 | ~1924 |
| Ralph Williams | Son | — | 11 | ~1929 |
| Leroy Williams | Son | — | 13 | ~1927 |
| John Williams | Son | — | 15 | ~1925 |
| Julia Williams | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Allegheny, Pennsylvania
Other, age 1
Allegheny, Pennsylvania · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Ralph |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 11
Allegheny-County, Pennsylvania · implied b. ~1929 — 9 household members
| Surname | Williams |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | C |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same Place |
| 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 Ralph Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ralph Williams
Son · 1940 · age 11 · b. ~1929 · Pennsylvania
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Sibling
Leroy Williams
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Williams
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Williams
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Williams
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Owens Williams
Sibling · 1940 · age 16
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 — 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-t0627-03673-00828)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anthony Simile | 9 | Son | — | Pennsylvania |
| 42 | John Simile | 6 | Son | — | Pennsylvania |
| 43 | Michael Gilbert | 38 | Head | Weighmaster | Pennsylvania |
| 44 | Alice Gilbert | 30 | Wife | — | Pennsylvania |
| 45 | Robert Gilbert | 13 | Son | — | Pennsylvania |
| 46 | Lois Gilbert | 11 | Daughter | — | Pennsylvania |
| 47 | Gilbert Gilbert | 9 | Son | — | Pennsylvania |
| 48 | Anna Mae Gilbert | 6 | Daughter | — | Pennsylvania |
| 49 | J. B. Ritzman | 28 | Head | — | Pennsylvania |
| 50 | Katharine Ritzman | 27 | Wife | — | Pennsylvania |
| 51 | Lloyd Ritzman | 3 | Son | Clerk | Pennsylvania |
| 52 | John Williams | 45 | Head | Custodian | Georgia |
| 53 | Julia Williams | 37 | Wife | — | Georgia |
| 54 | John Williams | 15 | Son | — | Georgia |
| 55 | Owens Williams | 16 | Son | — | Pennsylvania |
| 56 | Charles Williams | 14 | Son | — | Pennsylvania |
| 57 | Leroy Williams | 13 | Son | — | Pennsylvania |
| 58 | Ralph Williams THIS PERSON | 11 | Son | — | Pennsylvania |
| 59 | Elizabeth Williams | 10 | Daughter | — | Pennsylvania |
| 60 | Ethel Williams | 7 | Daughter | — | Pennsylvania |
| 61 | Charles Mcdonald | 51 | Head | Truck Driver | Georgia |
| 62 | Pinky Mcdonald | 42 | Wife | — | Alabama |
| 63 | Carl Post | 50 | Head | Clerk | Pennsylvania |
| 64 | Julia A. Post | 46 | Wife | — | Pennsylvania |
| 65 | Richard Sheers | 46 | Lodger | Laborer | Pennsylvania |
| 66 | Michael Skebes | 60 | Head | Laborer | Austria-Hungary |
| 67 | Anna Skebes | 52 | Wife | — | Austria-Hungary |
| 68 | Anna Weber | 20 | Daughter | New Worker | Pennsylvania |
| 69 | Patrick Sharpe | 60 | Head | Checker | Ireland |
| 70 | Margaret Sharpe | 60 | Wife | — | Ireland |
| 71 | Cornelius Sharpe | 18 | Son | Helper | Pennsylvania |
| 72 | Andrew Sharpe | 17 | Son | Clerk | Pennsylvania |
| 73 | Paul Deviglia | 53 | Head | Gas Maker | Italy |
| 74 | Rose Deviglia | 43 | Wife | — | Italy |
| 75 | Alexander Deviglia | 21 | Son | Service Man | Pennsylvania |
| 76 | Edward Deviglia | 15 | Son | — | Pennsylvania |
| 77 | Ralph Deviglia | 12 | Son | — | Pennsylvania |
| 78 | Agnes Deviglia | 10 | Daughter | — | Pennsylvania |
| 79 | Ray H. Mcgee | 23 | Head | Clerk | North Dakota |
| 80 | Geraldine Mcgee | 20 | Wife | — | 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)