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Helen Williams — 1920 US Census Record
Model Tree available1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Helen Williams across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & Mary — first a daughter (b.~1899), then head of a 8-person household.
Age 21
b. ~1899
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Williams |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Asphalt Sales Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Stenographer |
| Township / Ward | Bellevue Boro |
| Est. Birth Year | ~1899 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Williams | Daughter | — | 21 | ~1899 |
| Emma Williams | Daughter | — | 32 | ~1888 |
| David Williams | Head | — | 54 | ~1866 |
| Elizabeth Blanchard | Other | — | 78 | ~1842 |
| Walter Williams | Son | — | 11 | ~1909 |
| Oliver Williams | Son | — | 20 | ~1900 |
| Byron Williams | Son | — | 24 | ~1896 |
| Emma Williams | Spouse | — | 52 | ~1868 |
Census Appearances
1900
Allegheny, Pennsylvania
Daughter, age 3
Allegheny, Pennsylvania · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | Feb |
| Birth Year | 1897 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Daughter, age 12
Allegheny, Pennsylvania · implied b. ~1898 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Daughter, age 21
Allegheny, Pennsylvania · implied b. ~1899 — 8 household members
| Surname | Williams |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Stenographer |
| Industry | Asphalt Sales Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Helen Williams across 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father William Williams (~0.92 confidence) and mother Mary Williams (~0.92 confidence) and father Isaac Williams (~0.92 confidence) and mother Emma Williams (~0.92 confidence) and father David Williams (~0.92 confidence) and mother Emma Williams (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Williams
b. ~1857
Source father
● Household
· direct · ~0.92
Mother
Mary Williams
b. ~1860
Source mother
● Household
· direct · ~0.92
Father
Isaac Williams
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Emma Williams
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
David Williams
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Emma Williams
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Williams
Daughter · 1920 · age 21 · b. ~1899 · Pennsylvania
★ You are viewing this record
Sibling
Emma Williams
Sibling · 1920 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oliver Williams
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Williams
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Byron Williams
Sibling · 1920 · age 24
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
1920 US Federal Census — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1509unit:0629)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Smears | 18 | Son | None | Pennsylvania |
| 52 | Edward Smears | 17 | Son | None | Pennsylvania |
| 53 | Roger G Seaman | 32 | Head | Head Of Garage | Pennsylvania |
| 54 | Jane G Seaman | 30 | Wife | None | Ohio |
| 55 | R Jackson Seaman | 5 | Son | None | Pennsylvania |
| 56 | Francis S Seaman | 3 | Son | None | Pennsylvania |
| 57 | Arline G Seaman | 1 | Daughter | None | Pennsylvania |
| 58 | Arthur Lamb | 29 | Head | Draftsman | England |
| 59 | Elizabeth S Lamb | 24 | Wife | None | England |
| 60 | John S Lamb | 1 | Son | None | Pennsylvania |
| 61 | Fred Wachenheimer | 50 | Head | Purchasing Agt | Wisconsin |
| 62 | Mary Wachenheimer | 54 | Wife | None | Canada |
| 63 | Lawrence C Dumas | 42 | Head | Asst Gen Auditor | Nebraska |
| 64 | Alma D Dumas | 38 | Wife | None | Pennsylvania |
| 65 | Dorothy B Dumas | 16 | Daughter | None | Pennsylvania |
| 66 | Margaret M Dumas | 12 | Daughter | None | Pennsylvania |
| 67 | Paul L Dumas | 10 | Son | None | Pennsylvania |
| 68 | Robert Irwin | 40 | Head | Secretary | Pennsylvania |
| 69 | Nannie Irwin | 40 | Wife | None | Pennsylvania |
| 70 | Milton Keems | 69 | Head | Real Estate Agent | Pennsylvania |
| 71 | Margaret Keems | 66 | Wife | None | Pennsylvania |
| 72 | Madge Keems | 40 | Daughter | Stenographer | Pennsylvania |
| 73 | Mary I Keems | 24 | Daughter | General Clerk | Pennsylvania |
| 74 | Chas M Keems | 43 | Head | City Salesman | Pennsylvania |
| 75 | Bernice Keems | 34 | Wife | None | Pennsylvania |
| 76 | Georgia B Keems | 13 | Daughter | None | Pennsylvania |
| 77 | Jean M Keems | 11 | Daughter | None | Pennsylvania |
| 78 | Chas M Jr Keems | 8 | Son | None | Pennsylvania |
| 79 | Mary B Keems | 1 | Daughter | None | Pennsylvania |
| 80 | Dr Hugh W Arthur | 76 | Head | Dentist | Pennsylvania |
| 81 | Henrietta W Arthur | 42 | Daughter | Matron | Pennsylvania |
| 82 | Mary K Arthur | 40 | Daughter | Music Teacher | Pennsylvania |
| 83 | Robert Nelson | 63 | Head | Laborer | Scotland |
| 84 | Elizabeth Nelson | 64 | Wife | None | Scotland |
| 85 | Alex Brilland | 72 | Head | President | Scotland |
| 86 | Elizabeth Brilland | 72 | Wife | None | Scotland |
| 87 | Mary Brilland | 16 | Daughter | None | Pennsylvania |
| 88 | Anna D Beald | 53 | Aunt | None | Pennsylvania |
| 89 | Walter Brilland | 45 | Head | Foreman | Pennsylvania |
| 90 | Blanche Brilland | 46 | Wife | None | Pennsylvania |
| 91 | Roy Brilland | 11 | Son | None | Pennsylvania |
| 92 | Alfred Taylor | 63 | Head | Laborer | District of Columbia |
| 93 | David J Williams | 54 | Head | Machinist | Pennsylvania |
| 94 | Emma Williams | 52 | Wife | None | Pennsylvania |
| 95 | Emma K Williams | 32 | Daughter | None | Pennsylvania |
| 96 | Byron R Williams | 24 | Son | Machinist | Pennsylvania |
| 97 | Helen Williams THIS PERSON | 21 | Daughter | Stenographer | Pennsylvania |
| 98 | Oliver D Williams | 20 | Son | None | Pennsylvania |
| 99 | Walter Williams | 11 | Son | None | Pennsylvania |
| 100 | Elizabeth Blanchard | 78 | Mother-in-law | None | Pennsylvania |
Pedigree Summary
Helen + 4 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)