WS
William Simpson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this William Simpson across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & William — first a son (b.~1909), then head of a 6-person household.
Age 21
b. ~1909
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Simpson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1909 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Esther Simpson | Daughter | — | 17 | ~1913 |
| John Simpson | Head | — | 58 | ~1872 |
| John Simpson | Son | — | 14 | ~1916 |
| Godfrey Simpson | Son | — | 16 | ~1914 |
| William Simpson | Son | — | 21 | ~1909 |
| Robert Simpson | Son | — | 29 | ~1901 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age 2
Philadelphia, Pennsylvania · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Son, age 11
Philadelphia, Pennsylvania · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | William A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 21
Philadelphia, Pennsylvania · implied b. ~1909 — 6 household members
| Surname | Simpson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| 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 Simpson across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: father John Simpson (~0.92 confidence) and father William Simpson (~0.92 confidence) and mother Laura Simpson (~0.92 confidence) and mother Anna Simpson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Simpson
b. ~1872
Source father
● Household
· direct · ~0.92
Father
William Simpson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Laura Simpson
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Anna Simpson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Simpson
Son · 1930 · age 21 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
John Simpson
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Godfrey Simpson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Simpson
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Simpson
Sibling · 1930 · age 17
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
1930 US Federal Census — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
49 people indexed on this census page (ia:1930:fifteenthcensus00reel2143:0292)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Becker | 8 | Son | — | Pennsylvania |
| 2 | Andrew Cundra | 45 | Head | Boiler Maker | Czechoslovakia |
| 3 | Mary Cundra | 35 | Wife-H | — | Czechoslovakia |
| 4 | George Cundra | 14 | Son | — | Pennsylvania |
| 5 | Margaret Cundra | 11 | Daughter | — | Pennsylvania |
| 6 | Frances Cundra | 9 | Daughter | — | Pennsylvania |
| 7 | Michael Tudza | 46 | Head | Cooper | Czechoslovakia |
| 8 | Anna Tudza | 44 | Wife-H | — | Czechoslovakia |
| 9 | George Tudza | 21 | Son | Clerk | Pennsylvania |
| 10 | John Tudza | 17 | Son | Labor | Pennsylvania |
| 11 | Mary Tudza | 13 | Daughter | — | Pennsylvania |
| 12 | William Wake | 37 | Boarder | Cleaner | Czechoslovakia |
| 13 | Ellen Peale | 57 | Head | — | Pennsylvania |
| 14 | Clara Mcmullin | 30 | Daughter | Sales Lady | Pennsylvania |
| 15 | Ellen Mcmullin | 14 | Daughter | — | Pennsylvania |
| 16 | Rudolph Rippel | 38 | Head | Baker | Czechoslovakia |
| 17 | Emily Rippel | 35 | Wife-H | — | Czechoslovakia |
| 18 | Rudolph Jr. Rippel | 16 | Son | Apprentice | Pennsylvania |
| 19 | George Rippel | 12 | Son | — | Pennsylvania |
| 20 | Robert Rippel | 4 | Son | — | Pennsylvania |
| 21 | Anna Rippel | 15 | Daughter | — | Pennsylvania |
| 22 | Marie Rippel | 10 | Daughter | — | Pennsylvania |
| 23 | Margaret Hanna | 45 | Head | — | Pennsylvania |
| 24 | Hugh Hanna | 49 | Brother | Teamster | Pennsylvania |
| 25 | Margaret Witham | 51 | Head | — | Irish Free State |
| 26 | James Witham | 24 | Son | Dentist | Pennsylvania |
| 27 | Walter Witham | 22 | Son | — | Pennsylvania |
| 28 | Fred Witham | 18 | Son | — | Pennsylvania |
| 29 | Joseph Demarco | 42 | Head | Labor | New Jersey |
| 30 | Mary Demarco | 41 | Wife-H | — | Italy |
| 31 | John Demarco | 18 | Son | Apprentice | Pennsylvania |
| 32 | Raymond Demarco | 14 | Son | — | Pennsylvania |
| 33 | Mary Demarco | 11 | Daughter | Inspector | Pennsylvania |
| 34 | Carmen Demarco | 11 | Son | — | Pennsylvania |
| 35 | Benjamin Carbonaro | 65 | Father | — | Italy |
| 36 | Mary Carbonaro | 80 | Mother | — | Italy |
| 37 | Cornelius Bougherty | 64 | Head | Contractor | Pennsylvania |
| 38 | John Simpson | 58 | Head | Conductor | Pennsylvania |
| 39 | Robert Simpson | 29 | Son | Brakeman | Pennsylvania |
| 40 | William Simpson THIS PERSON | 21 | Son | — | Pennsylvania |
| 41 | Esther Simpson | 17 | Daughter | Typist | Pennsylvania |
| 42 | Godfrey Simpson | 16 | Son | — | Pennsylvania |
| 43 | John Simpson | 14 | Son | — | Pennsylvania |
| 44 | Charles Rangel | 42 | Head | Plumber | France |
| 45 | Catherine Rangel | 42 | Wife-H | — | France |
| 46 | Charles Jr. Rangel | 19 | Son | Helper | Pennsylvania |
| 47 | Joseph Rangel | 7 | Son | — | Pennsylvania |
| 48 | Rosalia Rangel | 20 | Daughter | — | Pennsylvania |
| 49 | John Smith | 28 | Head | Woodworker | Pennsylvania |
Pedigree Summary
William + 4 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)