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Joan Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dekalb-County, Indiana
Our Model Tree links this Joan Smith across the 1930 and 1940 US Censuses in Dekalb-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 6-person household.
Age 16
b. ~1924
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dekalb-County, Indiana |
| Surname | Smith |
| Given Name | Joan |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Jackson twp |
| 1935 Residence (County) | De Kalb |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Jackson Twp |
| Est. Birth Year | ~1924 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joan | Age | Birth yr |
|---|---|---|---|---|
| Joan Smith | Daughter | — | 16 | ~1924 |
| Robert Smith | Son | — | 18 | ~1922 |
| Betty Smith | Daughter | — | 10 | ~1930 |
| Barbara Smith | Daughter | — | 10 | ~1930 |
| Audrey Smith | Daughter | — | 13 | ~1927 |
| Debbie Smith | Head | — | 50 | ~1890 |
Census Appearances
1930
Dekalb, Indiana
Daughter, age 6
Dekalb, Indiana · implied b. ~1924 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Joann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Dekalb-County, Indiana
Daughter, age 16
Dekalb-County, Indiana · implied b. ~1924 — 6 household members
| Surname | Smith |
| Given Name | Joan |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Jackson twp |
| 1935 Residence (County) | De Kalb |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| 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 16 · b. ~1924 · Indiana
★ You are viewing this record
Sibling
Audrey Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Smith
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Smith
Sibling · 1940 · age 10
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 — Dekalb-County, Indiana
Open full size
1940 US Federal Census — Dekalb-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01036-00183)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Jack Walter | 13 | Son | — | Indiana |
| 42 | Joseph E. Walter | 10 | Son | — | Indiana |
| 43 | Patricia Jane Walter | 6 | Daughter | — | Indiana |
| 44 | Sue Elizabeth Walter | 5 | Daughter | — | Indiana |
| 45 | Hubert Wilhelm | 20 | Head | Delivery Boy | Indiana |
| 46 | Royal Wilhelm | 18 | Brother | Laborer | Indiana |
| 47 | Paul D. Provines | 25 | Head | Farmer | Indiana |
| 48 | Ruth Provines | 24 | Wife | — | Indiana |
| 49 | Joseph P. Provines | 2 | Son | — | Indiana |
| 50 | Thomas J. Maxwell | 27 | Head | Farmer | Ohio |
| 51 | Esther Maxwell | 22 | Wife | Typist | Indiana |
| 52 | Freddie Maxwell | 2 | Son | — | Indiana |
| 53 | Ray Provines | 57 | Head | Farmer | Indiana |
| 54 | Henrietta Provines | 56 | Wife | — | Indiana |
| 55 | Harry Provines | 31 | Son | Farmer | Indiana |
| 56 | Henry H. Rathert | 51 | Head | Machine Oper. | Missouri |
| 57 | Edith Rathert | 57 | Wife | — | Sweden |
| 58 | Henry Dale Rathert | 18 | Son | — | Minnesota |
| 59 | Harry O. Mcclellan | 31 | Head | Laborer | Indiana |
| 60 | Juanita Mcclellan | 28 | Wife | Press Oper | Indiana |
| 61 | Clara May Mcclellan | 10 | Daughter | — | Indiana |
| 62 | Alyene Fay Mcclellan | 7 | Daughter | — | Indiana |
| 63 | Robert Henry Mcclellan | 4 | Son | — | Indiana |
| 64 | Clara Mcclellan | 60 | Mother | — | Indiana |
| 65 | Walter D. Williams | 60 | Head | Farmer | Indiana |
| 66 | Molly Williams | 70 | Wife | — | Indiana |
| 67 | Lloyd R. Maurer | 52 | Head | Farmer | Indiana |
| 68 | Laura Maurer | 52 | Wife | — | Indiana |
| 69 | Dorothy Maurer | 16 | Daughter | — | Indiana |
| 70 | Walter H. Wilson | 63 | Head | Farmer | Iowa |
| 71 | Effie Wilson | 62 | Wife | — | Indiana |
| 72 | John R. Fetter | 49 | Head | Teaching | Indiana |
| 73 | Reinold Fetter | 18 | Son | — | Indiana |
| 74 | Lynn Fetter | 14 | Son | — | Indiana |
| 75 | Debbie O. Smith | 50 | Head | Farm Work | Indiana |
| 76 | Robert Smith | 18 | Son | Mechanic | Indiana |
| 77 | Joan Smith THIS PERSON | 16 | Daughter | — | Indiana |
| 78 | Audrey Smith | 13 | Daughter | — | Indiana |
| 79 | Barbara Smith | 10 | Daughter | — | Indiana |
| 80 | Betty Smith | 10 | Daughter | — | Indiana |
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)