SS
Sylvia Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Tazewell-County, Illinois
Our Model Tree links this Sylvia Smith across the 1930 and 1940 US Censuses in Tazewell-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 5-person household.
Age 17
b. ~1923
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tazewell-County, Illinois |
| Surname | Smith |
| Given Name | Sylvia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Washington City |
| Additional Details | |
| Highest Grade | Hs 3 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Washington City |
| Est. Birth Year | ~1923 |
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 1940 census.
| Name | Relation to head | Relative to Sylvia | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Smith | Spouse | — | 42 | ~1898 |
| Sylvia Smith | Daughter | — | 17 | ~1923 |
| Arthur Smith | Son | — | 12 | ~1928 |
| Margaret Smith | Daughter | — | 15 | ~1925 |
| Paul Smith | Head | — | 42 | ~1898 |
Census Appearances
1930
Tazewell, Illinois
Daughter, age 8
Tazewell, Illinois · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Sylvia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | North Carolina |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Tazewell-County, Illinois
Daughter, age 17
Tazewell-County, Illinois · implied b. ~1923 — 5 household members
| Surname | Smith |
| Given Name | Sylvia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Washington City |
| Highest Grade | Hs 3 |
| 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 Sylvia Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sylvia Smith
Daughter · 1940 · age 17 · b. ~1923 · Illinois
★ You are viewing this record
Sibling
Arthur Smith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Smith
Sibling · 1940 · age 15
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 — Tazewell-County, Illinois
Open full size
1940 US Federal Census — Tazewell-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00895-00810)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J. E. Brackbill | 50 | Head | Egg Salesman | Pennsylvania |
| 2 | Lilla Brackbill | 49 | Wife | — | Illinois |
| 3 | Glenn Brackbill | 21 | Son | — | S. Dakota |
| 4 | Eileen Brackbill | 18 | Daughter | — | Illinois |
| 5 | Arlo Brackbill | 16 | Son | — | Illinois |
| 6 | Evelyn Brackbill | 14 | Daughter | — | Illinois |
| 7 | Sam Wagner | 70 | Head | — | Illinois |
| 8 | Laura Wagner | 63 | Wife | — | Illinois |
| 9 | Glen Wagner | 34 | Son | — | Illinois |
| 10 | Paul Smith | 42 | Head | 40 | Illinois |
| 11 | Dorothy Smith | 42 | Wife | — | N. Carolina |
| 12 | Sylvia Smith THIS PERSON | 17 | Daughter | — | Illinois |
| 13 | Margaret E. Smith | 15 | Daughter | — | Illinois |
| 14 | Arthur L. Smith | 12 | Son | — | N. Carolina |
| 15 | Jesse Straubhar | 53 | Head | 48 | Illinois |
| 16 | Joseph Straubhar | 27 | Son | 48 | Illinois |
| 17 | Evelyn Franklin | 19 | Maid | Housework | Illinois |
| 18 | Herbert Moore | 37 | Head | 40 | Illinois |
| 19 | Bernice Moore | 27 | Wife | — | Illinois |
| 20 | Ronald Moore | 4 | Son | — | Illinois |
| 21 | Herbert Marshall | 44 | Head | 60 | Illinois |
| 22 | Elizabeth Marshall | 45 | Wife | — | Illinois |
| 23 | Dwight Marshall | 5 | Son | — | Illinois |
| 24 | Anna Harber | 83 | Mother-in-law | — | Illinois |
| 25 | Peter S. Heiser | 62 | Head | 40 | Illinois |
| 26 | Elizabeth Heiser | 62 | Wife | — | Illinois |
| 27 | Chas. Sommer | 81 | Head | — | Illinois |
| 28 | Henry Hackerson | 55 | Roomer | 40 | Norway |
| 29 | Martin Alsher | 55 | Roomer | 40 | Norway |
| 30 | William Turnbull | 57 | Head | — | England |
| 31 | Mary Turnbull | 61 | Wife | — | Illinois |
| 32 | Leonard Turnbull | 21 | Son | 40 | Illinois |
| 33 | Raymond Turnbull | 18 | Son | 30 | Illinois |
| 34 | Bernice Lawrence | 38 | Head | 36 | Illinois |
| 35 | Helen Lawrence | 15 | Daughter | — | Illinois |
| 36 | Frank Mofanger | 30 | Head | 60 | Illinois |
| 37 | Thelma Mofanger | 32 | Wife | — | Illinois |
| 38 | Gerald Mofanger | 1 | Son | — | Illinois |
| 39 | Robert Hodgson | 35 | Head | 40 | Illinois |
| 40 | Irene Hodgson | 33 | Wife | — | Illinois |
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)