HW
Harold Williams — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Harold Williams across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents Bertha — first a son (b.~1900), then head of a 4-person household.
Age 30
b. ~1900
Male
Son
Born: New York
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Williams |
| Given Name | Harold J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1900 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Genevieve Williams | Daughter | — | 23 | ~1907 |
| Bertha Williams | Daughter | — | 26 | ~1904 |
| Bertha Williams | Head | — | 56 | ~1874 |
| Harold Williams | Son | — | 30 | ~1900 |
Census Appearances
1910
Philadelphia, Pennsylvania
Other, age 10
Philadelphia, Pennsylvania · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Harold B. |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
Philadelphia, Pennsylvania
Son, age 20
Philadelphia, Pennsylvania · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Occupation | Chauffeur |
| Industry | Express |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Philadelphia, Pennsylvania
Son, age 30
Philadelphia, Pennsylvania · implied b. ~1900 — 4 household members
| Surname | Williams |
| Given Name | Harold J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Harold Williams across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: mother Bertha Williams (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bertha Williams
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Williams
Son · 1930 · age 30 · b. ~1900 · Pennsylvania
★ You are viewing this record
Sibling
Bertha Williams
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Williams
Sibling · 1930 · age 23
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
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2120:0047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charlotte Jones | 54 | Head | — | Virginia |
| 2 | John Jones | 42 | Son | — | Virginia |
| 3 | Sylvia Jones | 45 | Daughter | — | Pennsylvania |
| 4 | Stephen Long | 57 | Lodger | — | Maryland |
| 5 | Edward Wilson | 35 | Lodger | Plasterer | Tennessee |
| 6 | Julia Wilson | 45 | Lodger | Finisher | Virginia |
| 7 | John Harris | 40 | Head | Laundryman | Virginia |
| 8 | Minnie Harris | 37 | Wife | Steel Worker | Virginia |
| 9 | Andrew Harris | 18 | Son | — | Virginia |
| 10 | Thelma Harris | 15 | Daughter | Waiter | Virginia |
| 11 | Gertrude Harris | 11 | Son | — | Virginia |
| 12 | Emma Harris | 8 | Daughter | — | Pennsylvania |
| 13 | Ruth Harris | 7 | Daughter | — | Pennsylvania |
| 14 | Elaine Harris | 4 | Daughter | — | Pennsylvania |
| 15 | Fanny Lewis | 58 | Head | — | Maryland |
| 16 | Lydia Washington | 70 | Sister | Housework | Maryland |
| 17 | Hillyard Brown | 23 | Nephew | — | Pennsylvania |
| 18 | Ethel Brown | 22 | Niece | Operator | Pennsylvania |
| 19 | Hillyard Jr. Brown | 2 | Nephew | — | Pennsylvania |
| 20 | Monroe Brown | 1 | Nephew | — | Pennsylvania |
| 21 | Josephine Henderson | 60 | Lodger | — | Mississippi |
| 22 | Adolph Fisher | 51 | Head | Domestic | Pennsylvania |
| 23 | Rosalie Fisher | 47 | Wife | Clerk | Virginia |
| 24 | Alonzo Fisher | 25 | Son | — | Pennsylvania |
| 25 | Beatrice Fisher | 22 | Daughter | Messenger | Pennsylvania |
| 26 | John Keene | 42 | Head | Nurse | Pennsylvania |
| 27 | Ellen Holland | 81 | Aunt | Musician | Delaware |
| 28 | Frank Crymour | 69 | Lodger | — | Kentucky |
| 29 | Walter Moore | 37 | Lodger | Houseman | Florida |
| 30 | Corey Sackville | 38 | Lodger | Porter | Virginia |
| 31 | Adolphus Dulingworth | 30 | Head | Porter | Virginia |
| 32 | Hattie Dulingworth | 25 | Wife | Housework | North Carolina |
| 33 | Allie Morris | 29 | Head | Housework | Virginia |
| 34 | Lottie Morris | 28 | Wife | Chauffeur | Maryland |
| 35 | Harry True | 26 | Head | Housework | Georgia |
| 36 | Philomena True | 22 | Wife | Porter | Georgia |
| 37 | Harry Jr. True | 1 | Son | Server | Pennsylvania |
| 38 | Joseph Lewis | 42 | Head | — | Maryland |
| 39 | Ina Lewis | 38 | Wife | Chauffeur | Virginia |
| 40 | Helen Lewis | 20 | Daughter | Housework | Virginia |
| 41 | Green Macklin | 45 | Head | Housework | Delaware |
| 42 | Laura Macklin | 50 | Wife | Laborer | Delaware |
| 43 | Rosa Macklin | 18 | Daughter | Housework | Delaware |
| 44 | Richard Macklin | 14 | Son | Housework | Delaware |
| 45 | Walter Macklin | 12 | Son | — | Delaware |
| 46 | Young, Stella Macklin | 30 | Daughter | — | New York |
| 47 | Bertha Williams | 56 | Head | Dressmaker | New York |
| 48 | Harold J. Williams THIS PERSON | 30 | Son | — | New York |
| 49 | Genevieve Williams | 23 | Daughter | Chauffeur | Pennsylvania |
| 50 | Bertha C. Williams | 26 | Daughter | — | Pennsylvania |
Pedigree Summary
Harold + 2 siblings
Gen 1 · 1 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)