SS
Sophia Smith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Winnebago, Illinois
Our Model Tree links this Sophia Smith across the 1920, 1930 and 1940 US Censuses in Winnebago, Illinois (XGBoost, ~Confirmed), with identified parents Kingsley & Victor — first a daughter (b.~1917), then head of a 5-person household.
Age 13
b. ~1917
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Winnebago, Illinois |
| Surname | Smith |
| Given Name | Sophia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1917 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Sophia | Age | Birth yr |
|---|---|---|---|---|
| Victor Smith | Head | — | 38 | ~1892 |
| Sophia Smith | Daughter | — | 13 | ~1917 |
| Stella Smith | Daughter | — | 11 | ~1919 |
| Stanley Smith | Son | — | 15 | ~1915 |
| Mary Smith | Spouse | — | 36 | ~1894 |
Census Appearances
1920
Winnebago, Illinois
Daughter, age 3
Winnebago, Illinois · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Sophia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Daughter, age 13
Winnebago, Illinois · implied b. ~1917 — 5 household members
| Surname | Smith |
| Given Name | Sophia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Spouse, age 24
Winnebago-County, Illinois · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Sophie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford township |
| 1935 Residence (County) | Winnebago |
| Occupation | Knitter |
| Industry | Knitting mill |
| Class of Worker | PW |
| Hours Worked | 27 |
| Income (1939) | 496 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Sophia Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Kingsley Smith (~0.92 confidence) and father Victor Smith (~0.92 confidence) and mother Mary Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Kingsley Smith
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Victor Smith
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Mary Smith
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Sophia Smith
Daughter · 1930 · age 13 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Stanley Smith
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stella Smith
Sibling · 1930 · age 11
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 — Winnebago, Illinois
Open full size
1930 US Federal Census — Winnebago, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel571:0952)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Pierzchaloki | 52 | Head | Operator | Poland |
| 2 | Nellie Pierzchaloki | 53 | Wife | None | Poland |
| 3 | Theodore Pierzchaloki | 23 | Son | Machine Operator | Illinois |
| 4 | Leo Pierzchaloki | 20 | Son | Paper Box Maker | Illinois |
| 5 | Adele Pierzchaloki | 18 | Daughter | Tapper | Illinois |
| 6 | Helen Pierzchaloki | 14 | Daughter | None | Illinois |
| 7 | Lucille Pierzchaloki | 12 | Daughter | None | Illinois |
| 8 | Bruch Myoncy | 13 | Boarder | None | Illinois |
| 9 | Victor Smith | 38 | Head | Foreman | Poland |
| 10 | Mary Smith | 36 | Wife | None | Poland |
| 11 | Stanley Smith | 15 | Son | None | Illinois |
| 12 | Sophia Smith THIS PERSON | 13 | Daughter | None | Illinois |
| 13 | Stella Smith | 11 | Daughter | None | Illinois |
| 14 | George Smith | 33 | Head | Machine Operator | Austria |
| 15 | Rose Smith | 28 | Wife | None | Michigan |
| 16 | Robert Smith | 10 | Son | None | Illinois |
| 17 | Richard Smith | 8 | Son | None | Illinois |
| 18 | Donald Smith | 3 | Son | None | Illinois |
| 19 | John Wiedeman | 35 | Head | Laborer | Lithuania |
| 20 | Bernice Wiedeman | 25 | Wife | None | Illinois |
| 21 | Lucy Beresonski | 55 | Mother in law | None | Illinois |
| 22 | Stanley Beresonski | 20 | Brother in law | None | Indiana |
| 23 | Kajetan Domkoski | 68 | Head | Miner | Poland |
| 24 | Anna Domkoski | 52 | Wife | None | Poland |
| 25 | Katherine Domkoski | 21 | Daughter | Spinner | Illinois |
| 26 | Frank Domkoski | 20 | Son | Laborer | Illinois |
| 27 | John Domkoski | 18 | Son | Operator | Illinois |
| 28 | Helen Domkoski | 16 | Daughter | None | Illinois |
| 29 | Lottie Domkoski | 14 | Daughter | None | Illinois |
| 30 | Joseph Kowalewski | 44 | Head | Machinist | Poland |
| 31 | Anna Kowalewski | 35 | Wife | None | Poland |
| 32 | Nellie Kowalewski | 18 | Daughter | Waitress | Illinois |
| 33 | Casey Kowalewski | 17 | Son | Machinist | Poland |
| 34 | Sophia Kowalewski | 15 | Daughter | None | Illinois |
| 35 | Maryan Kowalewski | 13 | Son | None | Illinois |
| 36 | Eugene Kowalewski | 12 | Son | None | Illinois |
| 37 | Sigmund Kowalewski | 10 | Son | None | Illinois |
| 38 | Irene Kowalewski | 4 | Daughter | None | Illinois |
| 39 | James Porter | 33 | Head | Machinist | Illinois |
| 40 | Rose Porter | 35 | Wife | None | Poland |
| 41 | Rosemary Porter | 7 | Daughter | None | Wisconsin |
| 42 | Florence Porter | 3 | Daughter | None | Ohio |
| 43 | Jeanette Porter | 1 | Daughter | None | Illinois |
| 44 | John Jaroske | 40 | Head | Moulder | Poland |
| 45 | Carrie Jaroske | 38 | Wife | None | Poland |
| 46 | Joseph Jaroske | 14 | Son | None | Illinois |
| 47 | Matthew Jaroske | 9 | Son | None | Illinois |
| 48 | Stella Jaroske | 6 | Daughter | None | Illinois |
| 49 | John Jaroske | 5 | Son | None | Illinois |
| 50 | John Zofski | 50 | Lodger | Laborer | Poland |
Pedigree Summary
Sophia + 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)