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Joan Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Vigo-County, Indiana
Our Model Tree links this Joan Smith across the 1930 and 1940 US Censuses in Vigo-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vigo-County, Indiana |
| Surname | Smith |
| Given Name | Joan |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Otter Creek |
| 1935 Residence (County) | Vigo |
| Additional Details | |
| Industry | 0 |
| Highest Grade | G 7 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Otter Creek |
| Est. Birth Year | ~1926 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joan | Age | Birth yr |
|---|---|---|---|---|
| Joan Smith | Daughter | — | 14 | ~1926 |
| Robert Smith | Son | — | 16 | ~1924 |
| Albert Smith | Head | — | 76 | ~1864 |
| Freda Smith | Daughter | — | 10 | ~1930 |
| Wayne Smith | Son | — | 9 | ~1931 |
| William Smith | Son | — | 17 | ~1923 |
| Theresa Smith | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Vigo, Indiana
Daughter, age 4
Vigo, Indiana · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Vigo-County, Indiana
Daughter, age 14
Vigo-County, Indiana · implied b. ~1926 — 7 household members
| Surname | Smith |
| Given Name | Joan |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Otter Creek |
| 1935 Residence (County) | Vigo |
| Industry | 0 |
| Highest Grade | G 7 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Joan Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joan Smith
Daughter · 1940 · age 14 · b. ~1926 · Indiana
★ You are viewing this record
Sibling
Robert Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Freda Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wayne Smith
Sibling · 1940 · age 9
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 — Vigo-County, Indiana
Open full size
1940 US Federal Census — Vigo-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01105-00313)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward Cottrell | 13 | Son | — | Indiana |
| 42 | Walter King | 37 | Head | Miner | Indiana |
| 43 | Margaret King | 35 | Wife | — | Indiana |
| 44 | Doris Mae King | 15 | Daughter | — | Indiana |
| 45 | Betty Jane King | 12 | Daughter | — | Indiana |
| 46 | George Hamilton | 64 | Head | — | England |
| 47 | Frankie Hamilton | 58 | Wife | — | Kentucky |
| 48 | Richard Hamilton | 20 | Son | New Worker | Indiana |
| 49 | Lyle Hamilton | 26 | Son | Laborer | Indiana |
| 50 | Lucille Hamilton | 16 | Daughter-in-law | — | Indiana |
| 51 | Otis Chapman | 24 | Head | Laborer | Illinois |
| 52 | Josephine Chapman | 22 | Wife | — | Indiana |
| 53 | Richard Chapman | 1 | Son | — | Indiana |
| 54 | Max Johnson | 38 | Head | Proprietor | Indiana |
| 55 | Jennie Johnson | 36 | Wife | — | Indiana |
| 56 | Gertrude Mae Johnson | 13 | Daughter | — | Indiana |
| 57 | Dale Johnson | 11 | Son | — | Indiana |
| 58 | Sarah Rose Johnson | 7 | Daughter | — | Indiana |
| 59 | Alvin M. Robbins | 61 | Head | Farmer | Indiana |
| 60 | Alice Robbins | 58 | Wife | — | Indiana |
| 61 | Norman Robbins | 20 | Son | Salesman | Indiana |
| 62 | Charles C. Harkness | 46 | Head | Truck Driver | Indiana |
| 63 | Maude Ann Harkness | 45 | Wife | Saleswoman | Indiana |
| 64 | Robert C. Harkness | 17 | Son | — | Indiana |
| 65 | Lester Brush | 27 | Head | Laborer | Indiana |
| 66 | Evelina Brush | 24 | Wife | — | Indiana |
| 67 | Patricia Ann Brush | 4 | Daughter | — | Indiana |
| 68 | Rose Mary Brush | 2 | Daughter | — | Indiana |
| 69 | Ralph Barnhart | 45 | Head | Operating Engineer | Indiana |
| 70 | Carrie Barnhart | 45 | Wife | Bookkeeper | Indiana |
| 71 | Albert Smith | 76 | Head | Inspector | England |
| 72 | Theresa Smith | 42 | Wife | — | West Virginia |
| 73 | William Smith | 17 | Son | — | Indiana |
| 74 | Robert Smith | 16 | Son | — | Indiana |
| 75 | Joan Smith THIS PERSON | 14 | Daughter | — | Indiana |
| 76 | Freda Smith | 10 | Daughter | — | Indiana |
| 77 | Wayne Smith | 9 | Son | — | Indiana |
| 78 | Charles F. Minert | 64 | Head | Farmer | Indiana |
| 79 | Anna M. Minert | 68 | Wife | — | Kansas |
| 80 | Robert H. Minert | 31 | Son | Musician | 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)