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William Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this William Williams across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Clifford & Geneva — first a son (b.~1916), then head of a 7-person household.
Age 24
b. ~1916
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Williams |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 120 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Mechanic |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1916 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Vera Williams | Daughter | — | 29 | ~1911 |
| Lois Williams | Daughter | — | 33 | ~1907 |
| Geneva Williams | Head | — | 52 | ~1888 |
| Rae Overton | Other | — | 9 | ~1931 |
| Richard Williams | Son | — | 18 | ~1922 |
| William Williams | Son | — | 24 | ~1916 |
| John Williams | Son | — | 20 | ~1920 |
Census Appearances
1920
Philadelphia, Pennsylvania
Other, age 5
Philadelphia, Pennsylvania · implied b. ~1915 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | William |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Virginia |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 15
Philadelphia, Pennsylvania · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 24
Philadelphia-County, Pennsylvania · implied b. ~1916 — 7 household members
| Surname | Williams |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 120 |
| Highest Grade | No 1 |
| 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 William Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clifford Williams (~0.92 confidence) and mother Geneva Williams (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clifford Williams
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Geneva Williams
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Williams
Son · 1940 · age 24 · b. ~1916 · Pennsylvania
★ You are viewing this record
Sibling
Lois Williams
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Williams
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vera Williams
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Williams
Sibling · 1940 · age 20
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-t0627-03729-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Valores Larsen | 13 | Daughter | — | Pennsylvania |
| 2 | Helga Larsen | 12 | Son | — | Pennsylvania |
| 3 | Olaf Larsen | 10 | Daughter | — | Pennsylvania |
| 4 | Ena Larsen | 4 | Daughter | — | Pennsylvania |
| 5 | Vittie B Colston | 40 | Head | — | Georgia |
| 6 | Samuel Colston | 39 | Husband | Laborer | Alabama |
| 7 | Melvin Milton | 28 | Brother | Truck Driver | Georgia |
| 8 | Charles Green | 39 | Head | Still Cleaner | Virginia |
| 9 | Viola Green | 32 | Wife | — | Virginia |
| 10 | James Green | 16 | Son | Errand Boy | Pennsylvania |
| 11 | Viola C Green | 13 | Daughter | — | Pennsylvania |
| 12 | Charles H Green | 9 | Son | — | Pennsylvania |
| 13 | Robert E Green | 5 | Son | — | Pennsylvania |
| 14 | Mildred Green | 4 | Daughter | — | Pennsylvania |
| 15 | Josephine Jordan | 43 | Head | — | Virginia |
| 16 | Clarence Jordan | 24 | Son | Cook | Virginia |
| 17 | Benny Jacobs | 44 | Head | Laborer | Alabama |
| 18 | Marian Jacobs | 41 | Wife | — | Virginia |
| 19 | Jessie White | 41 | Head | Tobacco Stripper | No Carolina |
| 20 | Daniel Taylor | 53 | Lodger | Carpenter | So Carolina |
| 21 | William Tyson | 58 | Head | Carpenter | Georgia |
| 22 | Lillie Tyson | 56 | Wife | — | Louisiana |
| 23 | Walter Nelson | 54 | Head | Janitor | Georgia |
| 24 | Martha Nelson | 28 | Wife | — | So Carolina |
| 25 | Burrell Razor | 42 | Lodger | Laborer | Georgia |
| 26 | Estella Razor | 44 | Lodger | House Work | Georgia |
| 27 | Peter Caldwell | 33 | Head | Still Cleaner | Alabama |
| 28 | Katie Caldwell | 36 | Wife | — | Virginia |
| 29 | Robert Caldwell | 15 | Son | — | Alabama |
| 30 | Aron Caldwell | 13 | Son | — | Alabama |
| 31 | Viola Goodman | 27 | Lodger | Press Operator | Pennsylvania |
| 32 | Walter C Goodman | 10 | Son | — | Pennsylvania |
| 33 | Bobby K Goodman | 8 | Son | — | Pennsylvania |
| 34 | Geneva C Williams | 52 | Head | — | So Carolina |
| 35 | Lois Williams | 33 | Daughter | Music Teacher | Pennsylvania |
| 36 | Vera Williams | 29 | Daughter | Domestic | Pennsylvania |
| 37 | William Williams THIS PERSON | 24 | Son | Mechanic | Pennsylvania |
| 38 | Richard Williams | 18 | Son | — | Pennsylvania |
| 39 | John Williams | 20 | Son | — | Pennsylvania |
| 40 | Rae Overton | 9 | Granddaughter | — | Pennsylvania |
Pedigree Summary
William + 4 siblings
Gen 1 · 2 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)