MS
Marjorie Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Vermilion-County, Illinois
Our Model Tree links this Marjorie Smith across the 1930 and 1940 US Censuses in Vermilion-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vermilion-County, Illinois |
| Surname | Smith |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Vermilion |
| Additional Details | |
| Occupation | Student |
| Industry | Grade School |
| Class of Worker | NP |
| Hours Worked | 12 |
| Highest Grade | H-2 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Student |
| Township / Ward | Sidell Twp |
| Est. Birth Year | ~1925 |
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 1940 census.
| Name | Relation to head | Relative to Marjorie | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Smith | Daughter | — | 15 | ~1925 |
| Ralph Smith | Head | — | 39 | ~1901 |
| Ralph Smith | Son | — | 10 | ~1930 |
| James Smith | Son | — | 3 | ~1937 |
| David Smith | Son | — | 12 | ~1928 |
| Robert Smith | Son | — | 5 | ~1935 |
| Larkin Smith | Son | — | 8 | ~1932 |
| Ida Smith | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Vermilion, Illinois
Daughter, age 4
Vermilion, Illinois · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Vermilion-County, Illinois
Daughter, age 15
Vermilion-County, Illinois · implied b. ~1925 — 8 household members
| Surname | Smith |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Vermilion |
| Occupation | Student |
| Industry | Grade School |
| Class of Worker | NP |
| Hours Worked | 12 |
| Highest Grade | H-2 |
| 1935 Residence | Illinois |
| 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 Marjorie Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marjorie Smith
Daughter · 1940 · age 15 · b. ~1925 · Illinois
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Sibling
David Smith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Smith
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Smith
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Larkin Smith
Sibling · 1940 · age 8
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 — Vermilion-County, Illinois
Open full size
1940 US Federal Census — Vermilion-County, Illinois
Page Contents
18 people indexed on this census page (nara:1940:m-t0627-00899-00763)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer J. Aquash | 12 | Son | — | Illinois |
| 2 | Ralph Smith | 39 | Head | Farmer | Illinois |
| 3 | Ida Smith | 35 | Wife | House Wife | Illinois |
| 4 | Marjorie Smith THIS PERSON | 15 | Daughter | Student | Illinois |
| 5 | David Smith | 12 | Son | — | Illinois |
| 6 | Ralph Jr. Smith | 10 | Son | — | Illinois |
| 7 | Larkin E. Smith | 8 | Son | — | Illinois |
| 8 | Robert Lee Smith | 5 | Son | — | Illinois |
| 9 | James David Smith | 3 | Son | — | Illinois |
| 10 | George B. Cole | 42 | Head | Farmer | Illinois |
| 11 | Ruth Cole | 36 | Wife | House Wife | Illinois |
| 12 | Jack X. Cole | 13 | Son | — | Illinois |
| 13 | Minnie Cole | 66 | Mother | — | Illinois |
| 14 | Ed Casper | 52 | Head | Farmer | Nebraska |
| 15 | Nell Casper | 51 | Wife | House Wife | Illinois |
| 16 | Walter Oscar Gance | 33 | Head | Farm Laborer | Illinois |
| 17 | Ruth Gance | 20 | Wife | House Wife | Illinois |
| 18 | Marian Lee Gance | 1 | Daughter | — | 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)