EW
Ernest Williams — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Ernest Williams across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Ann & John — first a son (b.~1905), then head of a 4-person household.
Age 25
b. ~1905
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Williams |
| Given Name | Ernest R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Additional Details | |
| Occupation | Clerk |
| Industry | Credit Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1905 |
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 Ernest | Age | Birth yr |
|---|---|---|---|---|
| Ann Williams | Head | — | 65 | ~1865 |
| David Williams | Son | — | 32 | ~1898 |
| Sidney Williams | Son | — | 30 | ~1900 |
| Ernest Williams | Son | — | 25 | ~1905 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 6
Allegheny, Pennsylvania · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Ernest A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 15
Allegheny, Pennsylvania · implied b. ~1905 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Earnest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 25
Allegheny, Pennsylvania · implied b. ~1905 — 4 household members
| Surname | Williams |
| Given Name | Ernest R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Clerk |
| Industry | Credit Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Ernest Williams across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: mother Ann Williams (~0.92 confidence) and father John Williams (~0.92 confidence) and father Tom Williams (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ann Williams
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
John Williams
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Tom Williams
b. ~1873
Source father
● Household
· direct · ~0.92
This person
Anchor record
Ernest Williams
Son · 1930 · age 25 · b. ~1905 · Pennsylvania
★ You are viewing this record
Sibling
David Williams
Sibling · 1930 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sidney Williams
Sibling · 1930 · age 30
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 — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1983:0140)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John F. Murphy | 41 | Head | Motorman | Irish Free State |
| 52 | Elizabeth Murphy | 42 | Wife | — | Pennsylvania |
| 53 | Mary E. Murphy | 8 | Daughter | — | Pennsylvania |
| 54 | John F. Murphy | 6 | Son | — | Pennsylvania |
| 55 | Daniel M. Murphy | 5 | Son | — | Pennsylvania |
| 56 | Thomas Marion E. Murphy | 0 | Daughter | — | Pennsylvania |
| 57 | Robert F. Poppinger | 35 | Head | Beauty Operator | Germany |
| 58 | Charlotte Poppinger | 31 | Wife | Fireman | Germany |
| 59 | Robert F. Jr. Poppinger | 11 | Son | Book Keeper | Pennsylvania |
| 60 | Henry Schink | 60 | Father | — | Germany |
| 61 | Walter A. Schink | 32 | Brother-in-law | — | Louisiana |
| 62 | Sarah T. Duffy | 85 | Head | Assembler | Pennsylvania |
| 63 | Mabel Margaret R. Duffy | 43 | Niece | — | Pennsylvania |
| 64 | Mary R. Burns | 23 | Niece | — | Pennsylvania |
| 65 | John Paul | 27 | Head | — | Northern Ireland |
| 66 | Elizabeth Paul | 29 | Wife | Laborer | Northern Ireland |
| 67 | John Malter | 50 | Head | — | Germany |
| 68 | Barbara Malter | 51 | Wife | Clerk | Germany |
| 69 | Margaret Malter | 23 | Daughter | — | Pennsylvania |
| 70 | John P. Malter | 18 | Son | File Clerk | Pennsylvania |
| 71 | Dorothy E. Malter | 9 | Daughter | — | Pennsylvania |
| 72 | Felix T. Sarnaker | 53 | Head | — | Poland |
| 73 | Balbine Sarnaker | 48 | Wife | Janitor | Poland |
| 74 | Alice Sarnaker | 29 | Daughter | — | Pennsylvania |
| 75 | Leo T. Sarnaker | 27 | Son | Stenographer | Pennsylvania |
| 76 | Alice Sarnaker | 22 | Daughter-in-law | Stenographer | Pennsylvania |
| 77 | Frances Sarnaker | 23 | Daughter | Stenographer | Pennsylvania |
| 78 | Mathilda M. Sarnaker | 21 | Daughter | — | Pennsylvania |
| 79 | Florence J. Sarnaker | 16 | Daughter | — | Pennsylvania |
| 80 | Leona D. Sarnaker | 12 | Daughter | — | Pennsylvania |
| 81 | Clara V. Sarnaker | 11 | Daughter | — | Pennsylvania |
| 82 | Doris J. Sarnaker | 10 | Daughter | — | Pennsylvania |
| 83 | Frank Gooding | 35 | Head | — | Indiana |
| 84 | Clara M. Gooding | 32 | Wife | Brakeman | Indiana |
| 85 | Harry E. Sanders | 47 | Head | Manager | Pennsylvania |
| 86 | Elizabeth J. Sanders | 42 | Wife | Guard | Pennsylvania |
| 87 | Walter E. Sartory | 36 | Head | — | Pennsylvania |
| 88 | Janet Sartory | 37 | Wife | Clerk | Pennsylvania |
| 89 | Ida C. Sartory | 2 | Daughter | — | Pennsylvania |
| 90 | Arthur W. Dunning | 20 | Head | — | Pennsylvania |
| 91 | Louise E. Dunning | 23 | Wife | Fireman | Pennsylvania |
| 92 | Ann Williams | 65 | Head | — | Wales |
| 93 | David J. Williams | 32 | Son | — | Pennsylvania |
| 94 | Sidney J. Williams | 30 | Son | Brakeman | Pennsylvania |
| 95 | Ernest R. Williams THIS PERSON | 25 | Son | Clerk | Pennsylvania |
| 96 | John F. Maguian | 40 | Head | Brakeman | Pennsylvania |
| 97 | Julia M. Maguian | 39 | Wife | Clerk | Pennsylvania |
| 98 | Mary D. Maguian | 6 | Daughter | — | Pennsylvania |
| 99 | Morris D. Randall | 51 | Head | — | Pennsylvania |
| 100 | Mary M. Randall | 42 | Wife | Stationary Engineer | Pennsylvania |
Pedigree Summary
Ernest + 2 siblings
Gen 1 · 3 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)