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Lillian Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, Pennsylvania
Our Model Tree links this Lillian Williams across the 1920, 1930 and 1940 US Censuses in Mercer-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Benjamin & B — first a daughter (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, Pennsylvania |
| Surname | Williams |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Farrell, Pa |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Farrell Pa |
| Est. Birth Year | ~1915 |
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 1940 census.
| Name | Relation to head | Relative to Lillian | Age | Birth yr |
|---|---|---|---|---|
| Lillian Williams | Daughter | — | 25 | ~1915 |
| Mildred Williams | Daughter | — | 23 | ~1917 |
| Benjamin Williams | Head | — | 65 | ~1875 |
| Rachel Williams | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Mercer, Pennsylvania
Daughter, age 5
Mercer, Pennsylvania · implied b. ~1915 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Wales |
| Occupation | W |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Mercer, Pennsylvania
Daughter, age 15
Mercer, Pennsylvania · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Wales |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Mercer-County, Pennsylvania
Daughter, age 25
Mercer-County, Pennsylvania · implied b. ~1915 — 4 household members
| Surname | Williams |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Farrell, Pa |
| 1935 Residence (County) | Mercer |
| Highest Grade | Hs 4 |
| 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 Lillian Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Benjamin Williams (~0.92 confidence) and father B Williams (~0.92 confidence) and mother Rachel Williams (~0.92 confidence) and mother Rachel Williams (~0.92 confidence) and mother Rachel Williams (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Benjamin Williams
b. ~1875
Source father
● Household
· direct · ~0.92
Father
B Williams
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Rachel Williams
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Rachel Williams
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Rachel Williams
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lillian Williams
Daughter · 1940 · age 25 · b. ~1915 · Pennsylvania
★ You are viewing this record
Sibling
Mildred Williams
Sibling · 1940 · 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
1940 US Federal Census — Mercer-County, Pennsylvania
Open full size
1940 US Federal Census — Mercer-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03570-00201)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anita Bertelli | 13 | Daughter | — | Pennsylvania |
| 42 | Frank Fiater|Foster | 46 | Head | Labour | Yugoslavia |
| 43 | Ljuba Fiater|Foster | 38 | Wife | — | Yugoslavia |
| 44 | Steve Fiater|Foster | 18 | Son | — | Pennsylvania |
| 45 | Frances Fiater|Foster | 14 | Daughter | — | Pennsylvania |
| 46 | Joseph Kurcon | 61 | Head | Block Pickler | Poland |
| 47 | Blanche Kurcon | 50 | Wife | — | Poland |
| 48 | Peter Kurcon | 32 | Son | — | Pennsylvania |
| 49 | Anthony Kurcon | 17 | Son | — | Pennsylvania |
| 50 | Walter Kosiolek | 33 | Son-in-law | Block Pickler | Pennsylvania |
| 51 | Stella Kosiolek | 24 | Daughter | — | Pennsylvania |
| 52 | Walter Jr. Kosiolek | 4 | Grandson | — | Pennsylvania |
| 53 | Igantius Supsel | 52 | Head | Heater | Poland |
| 54 | Rose Supsel | 51 | Wife | — | Poland |
| 55 | Walter Supsel | 28 | Son | Inspector | Pennsylvania |
| 56 | Joseph Supsel | 27 | Son | Attender | Pennsylvania |
| 57 | Mary Anne Supsel | 24 | Daughter | Saleswoman | Pennsylvania |
| 58 | Edward Supsel | 20 | Son | Gas Attender | Pennsylvania |
| 59 | Lawrence Buscino | 48 | Head | Labour | Italy |
| 60 | Theresa Buscino | 42 | Wife | — | Italy |
| 61 | Jennie Buscino | 12 | Daughter | — | Pennsylvania |
| 62 | William Buscino | 11 | Son | — | Pennsylvania |
| 63 | Lawrence Jr. Buscino | 3 | Son | — | Pennsylvania |
| 64 | Benjamin Williams | 65 | Head | Labour | Pennsylvania |
| 65 | Rachel Williams | 62 | Wife | — | Wales |
| 66 | Lillian Williams THIS PERSON | 25 | Daughter | — | Pennsylvania |
| 67 | Mildred Williams | 23 | Daughter | Saleswoman | Pennsylvania |
| 68 | Louie Sucich | 42 | Head | Labour | Yugoslavia |
| 69 | Mary Sucich | 36 | Wife | — | Ohio |
| 70 | Matilda Sucich | 18 | Daughter | — | Pennsylvania |
| 71 | Betty Sucich | 9 | Daughter | — | Pennsylvania |
| 72 | Alice Armour | 35 | Sister | — | Pennsylvania |
| 73 | Donald Armour | 32 | Brother | Truck Driver | Pennsylvania |
| 74 | William Armour | 14 | Brother | — | Pennsylvania |
| 75 | Paul Stanton | 31 | Head | Pipe Fitter | Pennsylvania |
| 76 | Ara Stanton | 28 | Wife | — | Pennsylvania |
| 77 | Paul Jr. Stanton | 6 | Son | — | Pennsylvania |
| 78 | Robert Stanton | 0 | Son | — | Pennsylvania |
| 79 | Vincent Rampunzeski|Rampunzewski | 51 | Head | Carpenter | Poland |
| 80 | Anna Rampunzeski|Rampunzewski | 45 | Wife | — | Pennsylvania |
Related Census Records
Pedigree Summary
Lillian + 1 sibling
Gen 1 · 5 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)