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Donald Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Donald Williams across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Penna.
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Williams |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Penna. |
| 1935 Residence (City) | Phila. |
| 1935 Residence (County) | Phila. |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | Phila |
| Est. Birth Year | ~1925 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Mary Williams | Daughter | — | 15 | ~1925 |
| Patricia Williams | Daughter | — | 12 | ~1928 |
| Sarah Williams | Daughter | — | 13 | ~1927 |
| Margaret Williams | Daughter | — | 16 | ~1924 |
| Harry Williams | Head | — | 51 | ~1889 |
| David Williams | Son | — | 12 | ~1928 |
| Edward Williams | Son | — | 8 | ~1932 |
| Donald Williams | Son | — | 15 | ~1925 |
| Mary Williams | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 4
Philadelphia, Pennsylvania · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Son, age 15
Philadelphia-County, Pennsylvania · implied b. ~1925 — 9 household members
| Surname | Williams |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Penna. |
| 1935 Residence (City) | Phila. |
| 1935 Residence (County) | Phila. |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Donald Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Williams
Son · 1940 · age 15 · b. ~1925 · Pennsylvania
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Sibling
Margaret Williams
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Williams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Williams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Williams
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Williams
Sibling · 1940 · age 8
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03703-00092)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elvira Jean Williams | 10 | Daughter | — | Penna. |
| 42 | Sophia W. Glenn | 43 | Head | — | Georgia |
| 43 | Eliza Long | 75 | Mother | — | Georgia |
| 44 | Paul Gatty | 28 | Lodger | — | Georgia |
| 45 | Augustine Lombardo | 44 | Head | Barber | Italy |
| 46 | Madeline Lombardo | 42 | Wife | — | New Jersey |
| 47 | Frank Lombardo | 21 | Son | Barber | Penna. |
| 48 | Angelina Lombardo | 17 | Daughter | — | Penna. |
| 49 | John Casciano | 56 | Head | Barber | Italy |
| 50 | Emilia Casciano | 42 | Wife | — | Italy |
| 51 | Alexander Casciano | 24 | Son | Barber | Penna. |
| 52 | Rose Casciano | 17 | Daughter | New Worker | Penna. |
| 53 | Elmira Miller | 32 | Head | — | Maryland |
| 54 | Charles Miller | 13 | Son | — | Penna. |
| 55 | Elizabeth Miller | 9 | Daughter | — | Penna. |
| 56 | Jane Miller | 6 | Daughter | — | Penna. |
| 57 | Joseph Patelmo | 42 | Head | Proprietor-Bartender | Italy |
| 58 | Rose Patelmo | 35 | Wife | — | New Jersey |
| 59 | Lilly Patelmo | 8 | Daughter | — | Penna. |
| 60 | Noel Iannotta | 39 | Head | Machinist | France |
| 61 | Mary Iannotta | 33 | Wife | — | Penna. |
| 62 | Mary Iannotta | 8 | Daughter | — | Penna. |
| 63 | John Mckale | 27 | Head | Machinist'S Helper | Penna. |
| 64 | Sadie Mckale | 26 | Wife | — | Penna. |
| 65 | John Jr. Mckale | 3 | Son | — | Penna. |
| 66 | Paul Henderson | 43 | Head | Store Detective | Penna. |
| 67 | Mary Henderson | 42 | Wife | — | Penna. |
| 68 | Julia Muloney | 44 | Head | — | Eire |
| 69 | Elizabeth Muloney | 22 | Daughter | — | Penna. |
| 70 | Mary Anne Muloney | 2 | Daughter | — | Penna. |
| 71 | Lambert Trout | 64 | Head | — | Penna. |
| 72 | Harry Williams | 51 | Head | Carpenter | Penna. |
| 73 | Mary Williams | 43 | Wife | — | Penna. |
| 74 | Mary Williams | 15 | Daughter | Housekeeper | Penna. |
| 75 | Donald Williams THIS PERSON | 15 | Son | — | Penna. |
| 76 | Patricia Williams | 12 | Daughter | — | Penna. |
| 77 | Margaret Williams | 16 | Daughter | — | Penna. |
| 78 | Sarah Williams | 13 | Daughter | — | Penna. |
| 79 | David Williams | 12 | Son | — | Penna. |
| 80 | Edward Williams | 8 | Son | — | Penna. |
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)